ISQS Review

What is the average time for a PERT task if the optimistic time is 30, the most likely time is 50 and the pessimistic time is 70?

(30 + 4(50) + 70)/6

Which sentence harbors the most truth about a typical functional organization?

A project cuts across organizational boundaries in a typical functional organization.

Consider the two-resource sequence

Each job must be processed first on the first resource and then on the second.

Which of the following persons suggested that managers should use a throughput mentality rather than a cost mentality when making decisions and that doing so would force managers to identify bottlenecks, constraints?

Eli Goldratt

Which statement best characterizes the beta probability distribution approach within the framework of Project Evaluation and Review Technique (PERT)?

It allows managers to identify the best case, worst case, and most likely case for activity times.

Select the most accurate statement with regards to the Critical Path Method (CPM).

It assumes that activities are independent of one another, with clearly defined start and finish dates.

Which of the following persons derived the formula that cycle time is equal to WIP divided by throughput?

John little

how to calculate Slack Time (ST)

LF-EF LS-ES

Which of the following persons recommended that managers obsess with their processes?

Michael Hammer

author of "Quality is Free"

Philip Crosby

5S Principles

SORT SET IN ORDER SHINE STANDARDIZE SUSTAIN -training, communication, organizational structures

Choose the most accurate statement regarding simple exponential smoothing. Assume the time series is relatively stable with minimal random variability.

Values of the smoothing constant larger than 0.5 place more emphasis on recent data.

While of the following persons strongly recommended prevention and training as methods for elimination of quality problems?

W. Edwards Deming

Which of the following are discrete tasks which requires resources and time within the context of projects

activities

tardiness

amt of time by which the completion time exceeds the due date

Within the framework of the major categories of waste classified by the Toyota Motor Company, which statement is most accurate regarding overproduction?

b. It ties up production facilities, and the resulting excess inventory simply sits idle

A tracking signal offers the means to monitor a forecast by numerically representing _____

bias

which can be defined as repeatable periods of ups and downs over relatively long periods of time (like several years), as it pertains to data patterns and variations in a time series? &&& regular upturns and downturns in a data series over long periods of time

cyclical patterns

Suppose you were to crash a project. Which statement below is most accurate about your action?

decreases the total duration of the project

When are moving average (MA) methods most effective?

demand is relatively stable and consistent and short planning horizons

Short range

determining material requirements, production schedules, how much to order

lateness

difference between the completion and the due date

long range

facility expansion, add plants 24+ months

which term describes the value achieved by subtracting the forecast value from the observed value of the time series and the forecast

forecast error

Consider the functional area of information technology. Which of the following is an example of a project that belongs to that area?

installing a revenue management system

w/ data patterns in a time series in mind, which describes an explainable, one time variation?

irregular variation

push manufacturing system

it leads to high work-in-process inventories and high levels of indirect labor and overhead.

What technique is used to predict future demands when historical data is unavailable?

judgmental forecasting

distinct trend in the time series (up and down) most accurate method is

linear trend line

what the term is for the time needed to process a given set of jobs

makespan

Which of the following statements is true with regards to a two-resource sequencing problem?

minimize makespan

SPT (Shortest Processing Time) rule

minimizes the average lateness of a set of jobs within the context of sequencing minimize avg flow time/WIP inv and maximize resource utilization

EDD (earliest due date)

minimizes the maximum number of jobs past due.

what are gantt charts used for

monitor planned schedules

intermediate range

plan HR workforce levels, allocate budget, schedule resources, 18-24 months

Choose the option that serves as an example of waste in organizations

planned product obsolescence

FCFS (first come first serve)

processing times are relatively equal

Choose the term characterized as a temporary and often-customized initiative consisting of several smaller tasks and activities? It's necessary these tasks and activities are coordinated and completed in order to finish the whole initiative by its due date and within the allotted budget.

project

which system produces finished-goods inventory in advance of customer demand using a forecast of sales

push system

Which method is used in the construction of a statistical model that establishes a relationship between one or more independent, numeric variables and one dependent, numeric variable?

regression analysis

utilization is calculated 2 ways

resources used/ resources available demand rate/ (service rate x number of servers)

Choose the forecasting technique used for forecasting the time series value in a subsequent period by employing a weighted average of previous time-series values.

single exponential smoothing

Select the forecast or method that is rooted in the assumption future outcomes will be an extrapolation of previous observations.

statistical forecasting

Consider the stages of the project management life cycle. Of those stages, which one incorporates responding to circumstances adversely impacting project participants, managing alterations to baselines, as well as gathering and analyzing status reports?

the controlling stage

queuing system consists of three components

the customers the server the waiting line/que

The number of Kanban cards required in a system is solvable by the equation . In this instance, what does the term d(p + w) represent?

the demand during lead time

When the time series in an exponential smoothing model produces a positive trend, the

the forecast will undershoot the actual values

Which of the following dictates the duration of any project?

the longest path through the project network

_______ is focused on making sure operating systems perform their desired function reliably.

total productive maintenance

Qualitative approach

uses Delphi

exponential smoothing

widely accurate used method weights recent data more strongly