ISQS 3
critical path:
-the longest path; determines expected project duration - has 0 slack
5. Twenty samples of n = 200 were taken by an operator at a workstation in a production process. The number of defective items in each sample was recorded as follows: Calculate the UCL and LCL for a P Chart. a .123, .098 b 12.88, 12.34 c .1422, .0248 d .1422, 0 e 4.22, 12.45
.1422, .0248
onsider a single-server queuing system. If the arrival rate is 44 units per hour, and each customer takes 30 seconds on average to be served, what is the average timein the system to include service (answer in minutes to 2 decimal places)? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 1.02 minutes b .234 minutes c .79 minutes d 10.345 minutes e 12.23 minutes
.79 minutes
Deming's 14 points
1. create consistency 2. promote change 3. build quality/dont rely on inspections 4. build long-term relationships 5. improve product/quality 6. start training 7. emphasize leadership 8. drive out fear 9. break barriers b/w departments 10. stop haranguing workers11. support/improve #1012. remove barriers to pride in work 13. education/self improvement 14. put everyone to work on the transformation
2 types of variation
1. random variation/common cause 2. assignable variation/special cause
why do most projects fail?**all these can be avoided through commitment of upper management
1. unrealistic due dates 2. unproven technology (MOST LIKELY)3. too many changes/lack of comm.4. resources not available/supplier probs5. unrealistic budget and deadlines
. Consider a single-server queuing system. If the arrival rate is 44 units per hour, and each customer takes 40 seconds on average to be served, what is the average time in the system to include service (answer in minutes to 2 decimal places)? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 1.30 minutes b 2.15 minutes c 4.06 minutes d .99 minutes
1.30 minutes
Utilizing the same data calculate the upper and lower control limits for the R Chart. a 1.74, 0 b 1.74, -0.234 c 2.98, 1.23 d 33.45, 1.57 e 23.45, 14.09
1.74, 0
Cans of soup are supposed to weigh exactly 16 oz. Inspectors want to develop process controlcharts. They take eight samples and weigh 5 cans per sample. The standard deviation is 1.16 ozs.They obtain the following data: Calculate UCL and UCL for an Xbar chart a 23.3, 12.99 b Not enough info c 17.16, 14.04 d 16.78, 12.23 e 34.99, 10.45
17.16, 14.04
. Consider a single-server queuing system. If the arrival rate is 90 units per hour, and each customer takes 38 seconds on average to be served, what is the average number of customers in the system. Should they add servers? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 19, probably b 1.12, not enough info c 2.34, yes d 12.9, yes e 19, no
19, probably
z is always
3
f a company has a negative Cash to Conversion Cycle vaue then..... Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Company is paying bills early b Cash flow is at record lows or highs c Company is receiving payments from customers very late d Company gets accounts receivable payments before paying bills e Company has filed for bankruptancy
Company gets accounts receivable payments before paying bills
Flamm's book
"the managers pocket guide to emotional intelligence"
Who is known as the father of JIT/Lean? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Alexander Bell b Buddy Holly c Edward Demmings d Henry Ford e Frank Lloyd Wright
Edward Demmings
if a company decides to "Partner with Main Suppliers", then.... Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a The company will increase the number of suppliers they require b Fewer, more reliable suppliers will be sought c Profits will be split with suppliers d Company will utilize the supplier with the lowest price e Company will attempt to purchase all main suppliers
Fewer, more reliable suppliers will be sought
Which is not a disadvantage of outsourcing? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Negative impact on employees b Potential for quality issues c Gaining outside experience d Creating future competition
Gaining outside experience
Mr. Hamburger Head
Mr. inconsistent - flamm's boss only had hamburgers for all meals of the day. One minute he'd be nice and compliment flamm and then 30 min later the guy would be screaming at flamm. He was a psycho.
would you be aware of a type 2 error?
No because limits have expanded and get a sample in limits but not acceptable, can check by checking process control
What is the activity slack for a process on the critical path of a project? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Difference between ES and LS b Les than ES c None Exists d No more than twice ES plus EF
None Exists
What potentially will help to alleviate the need for incoming acceptance sampling? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Steps of discipline b Superior organization c Partnering with suppliers d Pay vendors a large bonus e Impossible to do
Partnering with suppliers
positive attitude of ignorance
Realizing that you don't know everything. Embrace this, and it will help you do better in jobs life etc.
quality at the source
The philosophy of making each worker responsible for the quality of his or her work and the work before them in assembly line. (can stop line if something is wrong)
What is the main purpose of Statistical Process Control? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Weed out bad parts b Place blame on workers that should be fired c Save money on difficult operations d To determine if anything has changed since the last time you ran samples
To determine if anything has changed since the last time you ran samples
When disciplining an employee which works best? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Nice and Tough b Automatic suspension c Tough and Nice d Ignore the employee e Always let other supervisors handle the issue
Tough and Nice
Method to lessen the effect of the Bullwhip Effect? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Use of EDI b Storing a lot of WIP c Sticking to a strict forecast d Keeping more finished goods inventory e Nothing really works
Use of EDI
Acceptance sampling is done when? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a After 2 or 3 process steps b After the product is delivered to the customer c When raw materials arrive d Acceptance sampling not used anymore
When raw materials arrive
assignable variation
arises form external sources that aren't inherent in the process, appear sporadically, and district the random pattern of common causes; causes the process TO CHANGE
One minute reprimand
be tough "n" nice; get right to the problem first and finish with positive reinforcement; let them know you're on their side
multi-phase, multi-server system
cafeteria
matrix management problem
companies will have traditional departments (marketing, operations, finance) and the project manager will take one person from each department to have expertise on their subject during the project. the problem will arise when the department manager has nobody to do that job from the elected employee that previously did it, causing the different managers to argue.
outsourcing advantage
could create new markets
conflict resolution
create a safe environment
where do upper and lower bounds come from?
customer survey
single server, multi phase
drive thru
What contributes most to a person's success in life? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a IQ b emotional intelligence c experience in one's field d who you know e who you marry
emotional intelligence
weakest skill of college graduates
emotional intelligence
how emotional intelligence helps competitors
emotional intelligence contributes 55-65% to success of high performers
what's the main problem within projects?
estimating how long things will take; half of projects failures are tied to poor estimates
What may be added to a critical project chain to keep the project on schedule (two words lower case ,singular)?
feeder buffer
Gunnysack
flamm took over a union plant. The first day he goes and introduces himself to everyone and to a union stuart. She asks when will they get a raise? The second day, she asks when will he give them a raise. Third day, she asks again. By Friday, flamm let the bag out and went into a screaming rage. He felt like a fool because she made it seem like shes in charge and not him. What should he have done? Invited her to come to his office after the third time asking. And bring in the human resources and have a serious convo about the productivity loss and ask her to stop. This is a verbal warning, the next time itll be a written, and then laid off for a week, and then fired.
low employee utilization?
give more work/ duties to employees
Edward Demings
has 14 points for quality control, also father of JIT
amygdala hijack
increased adrenaline. It describes the process of losing rational, logical thinking when becoming emotionally upset.
What do Harvard Business Surveys of Recruiters say is the most prevalent weakness of graduates? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Math skills b Nice clothes c interpersonal skills d long range planning e short term planning
interpersonal skills
cash conversion cycle
inventory day supply + AR day supply - AP day supply
What is a major thing that goes with project Step 5 Close? Two words lower case.
lessons learned
what is the threshold for time in line?
longer than 5 minutes people get antsy
-work fills available time -student syndrome: waiting until last second to start
members will either underestimate (in order to sell project) or inflate the time estimates (bc of laziness or afraid of being late)
Freeze Point Delay is made possible by the use of....(plural)
modules
do you do anything when you see a type 1 error?
no
if activity has slack of 18 weeks and you start one week late is that a big deal?
no
type 1/ alpha errors
occur when a point falls outside the control limits even though no special cause is operating; the result is a witch hunt for special causes and adjustment of things here and there. the tampering usually distorts a stable process as well as wasting time and energy
type 2/ beta errors
occur when you miss a special cause because the chart isnt sensitive enough to detect it. in this case, you will go along unaware that the problem exists and thus unable to root it out; may occur over time
Random variation ...... Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a occurs when an event occurs (i. e. hurricane). b shows up when the process has changed. c is very predictable. d occurs when the process hasn't changed.
occurs when the process hasn't changed.
acceptance sampling
partner with supplier to improve process/ efficiency. sampling occurs when raw materials arrive and when checking finished goods.
Gunnysack discipline would be a trait of ....... Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a first responders in class b people who procrastinate c assertive people d aggressive people e very bright people
people who procrastinate
multi-server, single-line, single-phase
post office
what happens when you expand project scope?
project takes longer
feeder buffer
protects the critical path from delays in non-critical paths; keeps people from falling behind; can be put between bottlenecks in the critical path
Random variation
result of complex interactions of variations in materials, tools, machines, info, workers, and the environment; process HAS NOT changed
electronic data interchange
short-circuits bull whip effect
student syndrome:
starting too late
how to find what customers want (ex. oz. in soda can)
surveys
Jockeying
switching between lines in hopes of getting the quickest line. doesn't provide any actual advantage
if assignable or special causes are present, the process output is not stable over time and is not predictable which means that...
the process has changed
scope creep
this often expands as you begin working; people see things close by that they can fix and then try to do that as well as the initial problem; someone could be working on a specific task and find another issue and instead of just working on their task, they move to accumulate more tasks ex. cleaning room
main reason to use statistical process control?
to see if anything has changed
it is extremely tough to make a project successful
true
empathy
understanding the problem at hand. don't let it sway your final decision
what is arguably most important for the success of a project?
upper management commitment
advantages of 1 supplier
using them when creating new product
whenever demand exceeds available capacity, what happens?
waiting in line... queue
Consider a single-server queuing system. If the arrival rate is 35 customers per hour and Arrival greaterit takes 3 minutes on average to serve a customer, what is the average waiting time in the waiting line in minutes? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a -.025 b 2.29 c waiting time continually increases d -1.02 e 1.02
waiting time continually increases
Reneging
when an arriving customer joins a line, but then abandons it before being served
An amygdala hijack is -------? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a when you control your temper b you act inappropriately (lose your temperature) c you come up with a good idea d you refuse to argue
you act inappropriately (lose your temperature)
household replenishment
you work in NYC and you don't have a car. You take cabs everywhere. You go home in a cab and you want beer but you don't have any. You have to go downstairs, get a cab, buy the stuff, come back home in a cab. $$$$. Same situation as if you lived far out in the country. So household replenishment is a delivery every week with supplies. Called "the last mile" problem. Downside: cant choose own produce, might pick out bad fruits and veggies.
