man 5501
_________ is a rule that allows a customer of higher priority to interrupt the service of another customer.
. A preemptive discipline
An expansionist capacity strategy is NOT indicated when
. expansion will lead to economies of scale.
Which of the following is a way that managers may attempt to affect the rate of customer arrivals?
A. differential pricing B. advertising C. special promotions D. All of the above. D all of the above
What would be the likely process characteristics of the typical college dining hall?
C. Line flows
The theory of constraints defines inventory as
C. all the money invested in a system in purchasing things that it intends to sell.
Question Help An example of a plant within a plant (PWP) is
C. an emergency department at a large municipal hospital.
Which of the following is NOT one of seven mistakes to avoid when managing processes?
C. being satisfied even when fundamental "reengineering" changes are not made
Some important metrics to consider for a financial advising firm might include
C. customer satisfaction.
A systematic approach to process analysis would include the following step:
D. Define scope
The six step blueprint for process analysis begins with:
D. Identify opportunity
An item that has been built to stock has yet to be sold. Which TOC operational measure is used to describe it in its current state?
D. Inventory
The result of a firm's splitting large plants, which produced all the company's products, into several specialized smaller plants is
D. focused factories.
A high customer-contact service process typically indicates all of the following EXCEPT:
D. low complexity.
An initial time study was done on a process with the following results (in minutes). Based on the data obtained so far, assuming an allowance of 22 percent of the normal time, what do you estimate for the time per customer served, based on this preliminary sample?
Find the average of each element, Next, multiply the performance rating by the corresponding average time to find the normal time, Compute the sum of the normal times to find the total normal time, To get the standard time (ST), just add in the allowance. ST=20.04(1+0.22)=24.45 minutes Therefore, based on the data obtained so far, assuming an allowance of 22 percent of the normal time, the standard time is approximately 24.45 minutes per unit customer served.
Suds and Duds Laundry washed and pressed the following number of dress shirts per week. For the given information, the labor productivity per hour for each week is:
Labor productivity = Output (Shirts)/Input (Labor hours).
labor productivity=
Policies processed/employee hours = 600 policies/ (3 employees)(40 Hours)= 5 policies/hour
Multifactor productivity level/ multifactor productivity ratio/ labor productivity level/ weekly profits The Big Black Bird Company (BBBC) has a large order for special plastic-lined military uniforms to be used in an urgent military operation. Working the normal two shifts of 40 hours each per week, the BBBC production process usually produces 2,600 uniforms per week at a standard cost of $120 each. 70 employees work the first shift and 32 the second. The contract price is $200 per uniform. Because of the urgent need, BBBC is authorized to use around-the-clock production, six days per week. When each of the two shifts works 72 hours per week, production increases to 3,800 uniforms per week but at a cost of $160 each. The multifactor productivity ratio based on the normal two shifts production level is (2,600×$200)/(2,600×$120)=1.67.
The multifactor productivity ratio based on the two shifts working 72 hours per week is (3,800× $200)/(3,800×$160)=1.25. The multifactor productivity level decreased for two shifts working 72 hours when compared to the level of the normal two shift. The multifactor productivity ratio based on the normal two shift decreased by % Change =(Current Value − New Value)/Current Value ×100=25.15% as compared to two shifts working 72 hours per week. The labor productivity ratio based on the normal two shifts production level is (2,600×$200)/(40×(70+32))=$127.45 per hour. The labor productivity ratio based on the two shifts working 72 hours per week is (3,800×$200)/(72×(70+32))=$103.49 per hour. The labor productivity level decreased for two shifts working 72 hours when compared to the level of the normal two shift. The labor productivity ratio based on the normal two shift decreased by % Change =(Current Value − New Value)/Current Value ×100=18.80% as compared to two shifts working 72 hours per week. The profit based on the normal two shifts production of 2,600 uniforms is (2,600×$200)−(2,600×$120)=$208,000. The weekly profit based on the two shifts working 72 hours per week and producing 3,800 uniforms is (3,800×$200)−(3,800×$160)=$152,000. The weekly profits decreased as a result of production increasing to 3,800 as compared to the normal production of 2,600 uniforms.
Multifactor Productivity=
Value of output/ Labor Cost+ Materials Cost + Overhead Cost = (400units) (10/unit)? 400+1000+300= 4000/1700=2.35
By devising improved work methods, management is attempting to
increase the efficiency of servers.
The three mainline functions of any business are
operations, marketing, and finance.
Productivity=
output/input
A _______ customer is one who enters the system and remains there until being served.
patient
In a DBR system, the mechanism that controls the rate at which the bottleneck dictates the throughput of the entire plant is called the
rope.
The difference between people-processing service and possession-processing services is that
services are provided to the customer who must be present in people-processing; services are provided for the customer who does not need to be present in possession-processing services.
Jorge Ortega has been using a 10 percent capacity cushion, servicing 60 customers an hour. There is a good deal of customer contact, and customer service has been poor due to random fluctuations in demand. If he increases his capacity cushion to 20%, what will be the new capacity requirement?
B. 75
Which of the following elements are NOT common to waiting-line problems?
B. A random-number generator
Which of the following statements about productivity is correct?
B. Multifactor inputs must be expressed in a common unit of measure.
Chang and Chang observe that the competition is increasing the size of its warehouses. They have decided to do the same. They are following _______ strategy.
B. a follow the leader
Letting a group of people knowledgeable about the process propose ideas for change is an example of
B. brainstorming.
Which service process structure typically involves work flows with steps that vary from one customer to the next?
B. front office
There are several types of benchmarking. These include:
B. functional benchmarking.
A primary enabler of process reengineering is
B. information technology.
The theory of constraints methods increase the firm's profits more effectively by focusing on what?
B. making materials flow rapidly through the entire system
Which core process includes the activities required to produce and deliver the service or product to the external customer?
B. order fulfillment process
The Fine Feline Co. produces decorative collars for cats. Last week employees worked 320 hours and produced 32,000 cat collars. This week the workers worked the same 320 hours, but produced 33,600 cat collars. Labor productively increased by _______ over last week.
B. 32000+33622=65600 33622/65600=5%
In general, a less capital-intensive industry such as a hotel chain would do well with a utilization rate of
B. 60-70%.
Food Goblin Supermarkets use both cashiers and baggers to serve customers at check out. During the first 5 hours of each workday (Monday-Friday), 7 cashiers and 4 baggers serve approximately 32 customers per hour. A cashier and a bagger who require approximately 6 minutes at checkout and 3 minutes at bagging serve each customer. a. How many employees should Food Goblin Supermarket schedule if it requires a 15 percent capacity cushion? b. Assume that both baggers and cashiers are cross-trained to perform both activities so that they can serve customers independently. Customers are now both checked and their groceries bagged by one individual. Further, assume that it takes 12 minutes for one individual to both cash out and bag each customer's groceries. How many employees should Food Goblin Supermarket schedule if it requires a 15 percent capacity cushion?
The capacity cushion is the amount of reserve capacity a process uses to handle sudden increases in demand or temporary losses of production capacity; it measures the amount by which the average utilization (in terms of total capacity) falls below 100 percent. Capacity cushion=100%−Average utilization rate (%) Find the average utilization rate required to provide the 15 percent capacity cushion. Utilization=100%−15% =85% Find the average output rate for cashiers. Average output rate Cashier =32 customers×6 minutes/60 minutes per hour×5 hours per day×5 days per week =80.00hours per week Use the obtained value to find the required number of cashiers. Number of cashiers =80.00 hours85%/100%×5 days×5 hours =4cashiers Find the average output rate for baggers. Average output Bagger =32 customers×3 minutes/60 minutes per hour×5 hours per day×5 days per week =40.00hours per week Use the obtained values to find the required number of baggers. Number of baggers =40.00 hours85%/100%×5 days×5 hours =2baggers b.Find the average output rate for cross-trained employees. Average outputCross-trained= 32 customers×12 minutes/60 minutes per hour×5 hours per day×5 days per week =160.00 hours per week Use the obtained values to find the required number of cross-trained employees. Number of employees =160.00 hours/(85%/100%×5 days×5 hours) =8 cross-trained employees
Decisions that tend to focus on the entire organization, cutting across departmental lines, and have long-term consequences are called
strategic.
Which of the following ways represents how management can improve a service system?
A. assign more than one person to a service facility B. allocate service tasks to sequential phases C. affect the rate of customer arrivals D. All of the above. D all of the above
The manager of Perrotti's Pizza collects data concerning customer complaints about pizza delivery. a. Use a Pareto chart to identify the "vital few" delivery problems. b. The manager of Perrotti's Pizza is attempting to understand the root causes of late pizza delivery and has asked each driver to keep a log of specific difficulties that create late deliveries. After one week, the logs included the following entries:
A Pareto chart is a bar chart on which the factors are plotted in decreasing order of frequency along the horizontal axis. First sort the factors in decreasing order of frequency. Calculate the cumulative frequencies of types of problem. Frequency/total frequency b.delivery vehicle broke down, couldn't make it across town to deliver second pizza in time, couldn't deliver four pizzas to four different customers in time, kitchen was late in producing order, got lost, order ticket was lost in production, couldn't read address on ticket and went to wrong house. one lost invoice two vehicle broke down three service area too large four misunderstood address
Ann's of Austin produces a premium Passion Fruit sorbet for local restaurants. Ann has unit costs of $1.60 per gallon (labor, 80 cents; materials, 70 cents; and overhead, 10 cents) and she sells the product for $2.00 per gallon. What is her multifactor productivity?
A. 1.60/(.80+.70+.10)= 1.25
Only the operations function part of an organization must design and operate processes that are part of a supply chain and deal with quality, technology, and staffing issues.
A. False
The effective operation of a firm and its supply chain is NOT as important as the design and implementation of its processes.
A. False
Which of the following statements is generally true for manufacturing processes when volumes are high and process divergence is low
A. Flexibility is not needed to utilize resources effectively. B. Line flow is possible. C. Less discretion is allowed in order to avoid the unpredictable demands required by customized orders. D. All of the above statements are true.
Long-term capacity planning deals with which of the following factors?
A. Investment in new facilities
Which of the following are characteristics of service provider operations?
A. Perishable outputs
Which of the following statements about a high customer contact front-office service process is true?
A. The customer (internal or external) is present, actively involved, and receives personal attention.
Each function of an organization has its own identity and yet is connected with operations through shared processes.
A. True
SSS is a local restaurant serving the needs of college students, faculty, and staff. The manager is considering adding a website so carry-out customers can order in advance more easily. Which process would be a core process in this new undertaking?
A. Web design
A back office service structure is most similar to
A. a line process.
A measure of the reserve capacity a process has to handle in unexpected increases in demand is the
A. capacity cushion.
A ________ process is a set of activities that delivers value to external customers.
A. core
Bottlenecks exist in which type of manufacturing processes?
A. line process B. job process C. batch process D. All of the above. D all of the above
Selecting the transportation mode (train, ship, truck, airplane, or pipeline) and scheduling both in-bound and outbound shipments is typically accomplished by which supply chain process
A. logistics
A high-volume manufacturing process typically means all of the following EXCEPT:
A. more customer involvement.
Which of the following is a principal reason that explains why economies of scale can drive costs down when output increases?
A. process advantages are found B. costs of purchased materials are cut C. construction costs are reduced D. All of the above.
What is the objective that managers are trying to attain when they decide to allow customer preemption?
A. reduce the waiting times of select customers
A major supplier to an auto manufacturer would most likely adopt which production and inventory strategy?
A. Make-to-stock strategy
A good brainstorming session has the following characteristic:
Ability to think of creative ideas, no matter how far fetched
Of the seven key principles of the theory of constraints, which is the first principal?
D. the focus should be on balancing flow, not on balancing capacity
When is the customer population of a waiting line problem said to be infinite?
D. when the number of customers in the system does not affect the rate at which the population generates new customers
An airline company must plan its fleet capacity and its long-term schedule of aircraft usage. For one flight segment, the average number of customers per day is 70, which represents a 65 percent utilization rate of the equipment assigned to the flight segment. If demand is expected to increase to 95 customers for this flight segment in three years, what capacity requirement should be planned? Assume that management deems that a capacity cushion of 28 percent is appropriate. To determine the capacity requirement, use the formula below, where M is the capacity requirement, D is the demand forecast (in customers per day), and C is the desired capacity cushion (expressed as a percent).
M=D1/(−(C/100)) Evaluate the equation by substituting 95 for D and 28 for C. The solution is shown rounded up to the next whole number. M =D/(1−(C/100)) =95/(1−(28/100)) =132 Therefore, the needed capacity requirement is 132 customers per day.
Dr. Gulakowicz is an orthodontist. She estimates that adding two new chairs will increase fixed costs by $153,000, including the annual equivalent cost of the capital investment and the salary of one more technician. Each new patient is expected to bring in $2,980 per year in additional revenue, with variable costs estimated at $1,060 per patient. The two new chairs will allow Dr. Gulakowicz to expand her practice by as many as 210 patients annually. How many patients would have to be added for the new process to break even?
Q=$153,000/($2,980−$1,060)=80 patients.
Mary Williams, owner of Williams Products, is evaluating whether to introduce a new product line. After thinking through the production process and the costs of raw materials and new equipment, Williams estimates the variable costs of each unit produced and sold at $7 and the fixed costs per year at $65,000. a. If the selling price is set at $20 each, how many units must be produced and sold for Williams to break even? Use both graphic and algebraic approaches to get your answer. b. Williams forecasts sales of 10,000 units for the first year if the selling price is set at $18.00 each. What would be the total contribution to profits from this new product during the first year? c. If the selling price is set at $14.50, Williams forecasts that first-year sales would increase to 12,500 units. Which pricing strategy ($18.00 or $14.50) would result in the greater total contribution to profits? d. What other considerations would be crucial to the final decision about making and marketing the new product?
Q=65,000/(20−7)=5,000 units Total cost=F+cQ and Total revenue=pQ 1 2 Quantity 0 10000 Total Annual Cost ($) (65,000+7Q) 65000 135000 Total Annual Revenue ($) (20Q) 0 200000 Plot the two lines, total annual cost and total annual revenue, on the same graph. Graphic approach gives the same result: 5,000 units must be produced and sold for Williams to break even. Note that Break-Even Analysis Solver of OM Explorer can also be used to solve the problem graphically. b. Profit=Revenue−Total cost = pQ−(F+cQ) =($18.00)(10,000)−[$65,000+($7)(10,000)] =$45,000 Thus, if Williams forecasts sales of 10,000 units at $18.00 each for the first year, the profit would be $45,000. c.Compute the profit for sales of 12,500 units at $14.50 each for the first year. Profit=Revenue−Total cost =pQ−(F+cQ) =($14.50)(12,500)−[$65,000+($7)(12,500)] =$28,750 Therefore, the strategy of using a price of $18.00 will result in a greater contribution to profits. d.Williams must also consider how this product fits within her existing product line from the perspective of required technologies and distribution channels. Other marketing, operations, and financial criteria must also be considered.
break-even volume
Q=F/(p−c) where Q is the break-even volume, F is the fixed cost, p is the revenue per patient, and c is the variable cost per unit.
Purple Swift manufactures birdhouses in lots of 10. Each birdhouse takes 45 minutes to paint. After 10 birdhouses are painted, the company switches paint color which requires a one-hour changeover. Assume that the company should changeover at the very beginning of the process. The company works 8 hours per shift, one shift per day, 210 days per year. Currently, the company has one point booth. What is Purple Swift's paint capacity cushion if it builds 1,850 birdhouses per year?
The capacity cushion is the amount of reserve capacity a process uses to handle sudden increases in demand or temporary losses of production capacity; it measures the amount by which the average utilization (in terms of total capacity) falls below 100 percent. When just one service or product is processed at an operation and the time period is a particular year, the capacity requirement, M, is M=Dp/(N1−C100), where D=Demand forecast for the year (number of units produced), p=processing time (in hours per unit produced), N=total number of hours per year during which the process operates, C=desired capacity cushion (expressed as a percent). Use the formula provided above to find the capacity cushion: C=(1−Dp/MN) ×100%. The capacity requirement, M, is given in the text (one point booth). Find the total number of hours per year during which the process operates. N=8 hours per shift×1 shift per day×210 days per year =1,680 hours per week Find the number of total hours required for the demand forecast. Dp=Total number of items×Process time per item+Total number of lots×Time to changeover= 1,850×45/60+1,850/10×1=1,573 hours Use the obtained values to find the capacity cushion. C=(1−1,573/(1×1,680))×100%=6.4%
Multifactor productivity ratio/ labor productivity ratio Student tuition at Boehring University is $180 per semester credit hour. The state supplements school revenue by $90 per semester credit hour. Average class size for a typical 3-credit course is 45 students. Labor costs are $4,000 per class, materials costs are $22 per student per class, and overhead costs are $24,000 per class. The multifactor productivity ratio currently is 1.26 and the labor productivity ratio is $162.72 per hour if the instructors work on an average of 14 hours per week for 16 weeks for each 3-credit class of 45 students. Coach Bjourn Toulouse led the Big Red Herrings to several disappointing football seasons. Only better recruiting will return the Big Red Herrings to winning form. Because of the current state of the program, Boehring University fans are unlikely to support increases in the $192 season ticket price. Improved recruitment will increase overhead costs to $31,000 per class section from the current $24,000 per class section. The university's budget plan is to cover recruitment costs by increasing the average class size to 85 students. Labor costs will increase to $6,500 per 3-credit course. Material costs will be about $30 per student for each 3-credit course. Tuition will be $250 per semester credit, which is supplemented by state support of $90 per semester credit.
The revenue earned (output) by the university per 3-credit course with an average class size of 85 is: Value of output = 85 students/class×3-credit hours per student×($250+$90)/credit hour=$86,700 per class. The cost incurred (input) by the university per 3-credit course with an average class size of 85 is: Value of inputs =Labor + Materials + Overhead=$6,500+($30×85)+$31,000=$40,050 per class. Productivity = OutputTotal Input. In the case of multiple inputs, total inputs should be reflected in one common measure (i.e., dollars). The multifactor productivity ratio with the university's plan to meet the expenses related to improving the recruitment is $86,700/$40,050=2.16. As compared to present multifactor productivity ratio (1.26), the university's plan will result in an improved multifactor productivity ratio (2.16). The labor hours (input) spent by the university per 3-credit course with an average class size of 85 if instructors are going to work an average of 20 hours per week for 16 weeks is: Labor hours of inputs = 20 hours per week×16 weeks=320 hours per class. Labor productivity =Total outputLabor hours. If instructors are going to work an average of 20 hours per week for 16 weeks for each 3-credit class of 85 students, the labor productivity ratio is $86,700/320 hours=$270.94 per hour.
Knott's Industries manufactures standard and super premium backyard swing sets. Currently it has four identical swing-set-making machines, which are operated 350 days per year and 8 hours each day. A capacity cushion of 15 percent is desired. The following information is also known: Standard model Super Premium Model Annual Demand 20000 10000 Standard Processing Time 10 min 20 min Average Lot Size 50 25 Standard Setup Time per Lot 30 min 45 min
To determine if Knott's Industries has sufficient capacity, determine the number of machines needed to meet annual demand. Use the formula below, where M is the number of machines required, D is the demand forecast (in units of product), p is the processing time (in minutes per unit produced), N is the total number of minutes per year during which the process operates, C is the desired capacity cushion (expressed as a percent), Q is the number of units in each lot, and s is the setup time (in minutes) per lot. M=[Dp+(D/Q)s]Standard Model+[Dp+(D/Q)s]Super Model/N[1−(C/100)] The values D, p, C, and Q are given in the problem statement. The total number of minutes per year during which the process operates, N, must be calculated. To determine the value of N, recall that the process operates 8 hours a day for 350 days a year. N=168,000 Evaluate for M by substituting known values into the equation and simplifying. The solution is shown rounded up to the next whole number. M=[Dp+(D/Q)s]Standard Model+[Dp+(D/Q)s]Super ModelN[1−(C/100)] =[20,000(10)+(20,000/50)30]+[10,000(20)+(10,000/25)45]/ (168,000[1−(15/100))]=4 The value of M is equal to the number of machines Knott's currently has, 4. Therefore, Knott's does have sufficient capacity to meet annual demand. b. = [20,000(10)+(20,000/50)30]+[20,000(20)+(20,000/25)30]/ 168,000[1−(15/100)]=5 The value of M is greater than the number of machines Knott's currently has, 4. Therefore, Knott's would not have enough capacity to produce 20,000 units of each type of swing set.
The Dahlia Medical Center has 32 labor rooms, 18 combination labor and delivery rooms, and 3 delivery rooms. All of these facilities operate around the clock. Time spent in labor rooms varies from hours to days, with an average of about a day. The average uncomplicated delivery requires about one hour in the delivery room. During an exceptionally busy three-day period, 111 healthy babies were born at Dahlia Medical Center. 60 babies were born in separate labor and delivery rooms and 51 were born in combined labor and delivery rooms. Which of the facilities (labor rooms, combination labor and delivery rooms, or delivery rooms) had the greatest utilization rate? To determine which of the facilities (labor rooms, combination labor and delivery rooms, or delivery rooms) had the greatest utilization rate, use the formula below to compute the utilization rate for each of the facilities.
Utilization=Average output rate/ Maximum capacity× 100% First, find the maximum capacity of the 32 labor rooms. Note that these rooms operate 24 hours a day. The capacity of the labor rooms, in hours, for the three-day period is the product of 3 days, 24 hours/day, and the 32 rooms, which is equal to 2,304 hours. Find the utilization by dividing the total amount of time the labor rooms were used by the maximum capacity, 2,304 hours. Note that the labor rooms were used for 60 births and that an average birth uses a labor room for 24 hours. The solution is shown rounded to two decimal places. 62.50% Next, find the maximum capacity of the 3 delivery rooms. Note that these rooms operate 24 hours a day. The capacity of the delivery rooms, in hours, for the three-day period is the product of 3 days, 24 hours/day, and the 3 rooms, which is equal to 216 hours. Find the utilization by dividing the total amount of time the delivery rooms were used by the maximum capacity, 216 hours. Note that the delivery rooms were used for 60 births and that an average birth uses a delivery room for 1 hour. The solution is shown rounded to two decimal places. 27.78% Next, find the maximum capacity of the 18 combination labor and delivery rooms. Note that these rooms operate 24 hours a day. The capacity of the labor and delivery rooms, in hours, for the three-day period is the product of 3 days, 24 hours/day, and the 18 rooms, which is equal to 1,296 hours. Find the utilization by dividing the total amount of time the combination labor and delivery rooms were used by the maximum capacity, 1,296 hours. Note that the labor and delivery rooms were used for 51 births and that an average birth uses a labor and delivery room for 24 hours. The solution is shown rounded to two decimal places. 94.44% Therefore, combination labor and delivery rooms had the greatest utilization rate.
Two different manufacturing processes are being considered for making a new product. The first process is less capital-intensive, with fixed costs of only $52,000 per year and variable costs of $710 per unit. The second process has fixed costs of $406,000 but variable costs of only $220 per unit. a. What is the break-even quantity, beyond which the second process becomes more attractive than the first? b. If the expected annual sales for the product is 745 units, which process would you choose?
a. The total cost of producing Q units of the product is given by: Total cost=F+c×Q, where F is the fixed cost, c is the variable cost per unit, and Q is the volume produced. The production volume at which both manufacturing processes are indifferent can be solve from: F1+c1×Q=F2+c2×Q, where F1, c1 are the fixed cost and variable cost per unit of manufacturing process one, and F2, c2 are the fixed cost and variable cost per unit of manufacturing process two. Solving for Q, Q=F2−F1/(c1−c2), Q=$406,000−$52,000/($710−$220)=722 units. b. If the expected annual sales for the product is 820 units, which process would you choose? Since the production volume at which the second manufactuing process becomes more attractive is 722 units and the expected annual sales for the product is 820 units, you should choose the second manufactuing process.
Spartan Castings must implement a manufacturing process that reduces the amount of particulates emitted into the atmosphere. Two processes have been identified that provide the same level of particulate reduction. The first process is expected to incur $685,000 of fixed cost and add $35 of variable cost to each casting Spartan produces. The second process has fixed costs of $100,000 and adds $100 of variable cost per casting. a. What is the break-even quantity beyond which the first process is more attractive? b. What is the difference in total cost if the quantity produced is 5,000?
a. The break-even quantity is the quantity for which the total costs for the two alternatives are equal. Let F1 equal the fixed cost for the first process, F2 equal the fixed cost for the second process, c1 equal the variable cost (per unit) for the first process, and c2 equal the variable cost (per unit) for the second process. First determine the total cost for each process depending on the quantity, Q. Total cost (process 1) =F1+c1Q=$685,000+$35Q Total cost (process 2) =F2+c2Q=$100,000+$100Q Having obtained the equations for the total cost of each process, find the break-even quantity, Q, by setting them equal: F1+c1Q=F2+c2Q $685,000+$35Q=$100,000+$100Q $65Q=$585,000 Q=9000 b.Use the obtained equations to find the total cost for each process given Q=5,000. Total cost (process 1)= F1+c1Q=$685,000+$35(5,000)=$860,000 Total cost (process 2) =F2+c2Q=$100,000+$100(5,000)=$600,000 Note that the total cost of process 1 is greater. Find the difference in total cost: The difference in total cost=$860,000-$600,000=$260,000.
Refer to the accompanying process chart for an automobile oil change. Complete parts (a) and (b) if: •The mechanic earns $42 per hour (including variable fringe benefits). •The process is performed twice per hour (on average). •The shop is open 325 days a year, 10 hours a day. •The mechanic does not get paid for idle time. •There can be only two cycles per hour regardless of the cycle time.
a. What is the total labor cost associated with the process? In this case, the total labor cost is equal to the wage rate per hour times the number of hours per oil change times the number of oil changes per year. First, compute the time it takes to complete one oil change using the information in the process chart. To do so, add up the times in the summary table. 16.5+5.5+5.0+0.7+0.3=28 min Now, determine the computation that is needed to find the total labor cost. As stated before, the total labor cost is equal to the wage rate per hour times the number of hours per oil change times the number of oil changes per year. In this case, the wage rate per hour is $42/hr, the number of hours per oil change is (28 min/oil change)/(60 min/hr), and the number of oil changes per year is 2 oil changes/hr×10 hrs/day×325 days/yr. Therefore, the computation is the expression shown below.($42/hr)[(28min/oil change)/(60 min/hr)](2 oil changes/hr×10 hrs/day×325 days/yr) Complete the computation. ($42/hr)[(28min/oil change)/(60 min/hr)](2 oil changes/hr×10 hrs/day×325 days/yr)=$127,400/yr Therefore, the total labor cost associated with the process is $127,400 per year. b.If steps 7, 10, 12, and 15 were eliminated, estimate the annual labor savings associated with implementing this new process. To answer this question, compute the total labor cost of these four steps. Use a similar computation as in part (a), only replace the total 28 minutes per oil change with the total time it takes to complete these four steps per oil change. Compute the time it takes to complete the four given steps using the information in the process chart. 0.90+0.60+0.70+0.50=2.7min Now, replace the total 28 minutes per oil change with the 2.7 minutes saved in the computation from part (a) and simplify. ($42/hr)[(2.7min saved/oil change)/(60 min/hr)](2 oil changes/hr×10 hrs/day×325 days/yr)=$12,285/yr Thus, if steps 7, 10, 12, and 15 were eliminated, the annual labor savings is $12,285.
Mackelprang, Inc., is in the initial stages of building the premier planned community in the greater Phoenix, Arizona, metropolitan area. The main selling point will be the community's lush golf courses. Homes with golf course views will generate premiums far larger than homes with no golf course views, but building golf courses is expensive and takes up valuable space that non-view homes could be built upon. Mackelprang, Inc., has limited land capacity. In order to maximize its profits, it is faced with a decision as to how many golf courses it should build, which in turn will impact how many homes with and without golf course views it will be able to construct. Mackelprang, Inc., realizes that this decision is directly related to the premium buyers will be willing to spend to buy homes with golf course views. Mackelprang, Inc., is required to build at least one golf course, but has enough space to build up to three golf courses.
compute expected payoff for The Island. Total revenue=0.2×$3.5+0.5×$2+0.3×$0.7=$1.91 Expected Payoff=$1.91− $1.5=$410,000 Compute expected payoff for Wildwood. Total revenue=0.3×$7+0.4×$5.5+0.3×$0.7=$4.51 Expected Payoff=$4.51−$4.8=−$−290,000 Compute expected payoff for The Ranch. Total revenue=0.3×$5+0.5×$3.5+0.2×$0.7=$3.39 Expected Payoff=$3.39−$3=$390,000 Hence, Mackelprang, Inc., should build The Island and The Ranch courses. b.What is the expected payoff for this project? A combined payoff of two courses is $410,000+$390,000=$800,000. Thus, Mackelprang Inc. should build The Island and The Ranch golf courses for a combined payoff of $800,000.