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Exam 7: Work Design and Measurement

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Question 21

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A methods and measurements analyst for Digital Devices needs to develop a time standard for the task of assembling a computer mouse. In a preliminary study, she observed one of her workers perform this task six times with the following results: $\begin{array} { l r r r r r r } \text { Observation } & 1 & 2 & 3 & 4 & 5 & 6 \\\hline \text { Time (seconds) } & 46 & 38 & 40 & 34 & 42 & 40\end{array}$ What is the observed time for this task?

A) 34 seconds
B) 40 seconds
C) 46 seconds
D) 48 seconds
E) 240 seconds

F) None of the above
G) C) and D)

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Question 22

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One of the potential benefits of self-directed teams is higher quality.

A) True
B) False

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Question 23

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A behavioral approach to job design which increases responsibility for planning and coordinating tasks is job:

A time study of a job produced the following: average cycle time = 1.5 minutes, performance rating = 1.15. Allowances are 18 percent of the workday (480 minutes). Determine the standard time for this job.

Given the following work sampling data, based upon 100 random observations of a particular worker: $\begin{array} { l c } \text { Activity } & \text { Times Observed } \\\hline \text { A } & 20 \\\text { B } & 50 \\\text { C } & 10 \\\text { Others } & 20\end{array}$ What is the estimated proportion of time this worker spends performing activity A?

Given the following work sampling data, based upon 100 random observations of a particular worker: $\begin{array} { l c } \text { Activity } & \text { Times Observed } \\\hline \text { A } & 20 \\\text { B } & 50 \\\text { C } & 10 \\\text { Others } & 20\end{array}$ For a confidence level of 86.64 percent, what is the maximum error of the estimate for activity B?

The symbols for operation, storage, transportation, inspection, and delay would usually be found on which type of chart?

The standard time for a job can be obtained by multiplying the normal time by an appropriate allowance factor.

When performing a time study, the analyst converts the observed time into the time an "average" worker would require working at an acceptable pace by using which of the following?

A performance rating of less than 1.0 means that the observed worker was judged to be working at a faster than normal rate-doing the job more quickly than normal.

Eight instances of a worker doing a task were observed as follows: $\begin{array} { l r r r r r r r r } \text { Observation } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 \\\hline \text { Time (seconds) } & 17 & 18 & 15 & 14 & 13 & 15 & 16 & 12\end{array}$ If the person observed worked at a pace that is 80 percent of normal, and if the appropriate allowance for this task is 25 percent of job time, what should be the standard time?

A work sampling study of kitchen help is to be designed. The study will be conducted over a nine-day period. The kitchen help works a seven-hour shift. Determine the day, hour, and minute of five observations using the random digits listed below. $\begin{array} { l r r r r r r r r r r r r r r } \text { Day } & 1 & 8 & 4 & 4 & 1 & 1 & 2 & 3 & 1 & 9 & 0 & 8 & 7 & 3 \\\text { Hour } & 7 & 3 & 8 & 4 & 7 & 9 & 1 & 3 & 2 & 4 & 9 & 6 & 3 & 5 \\\text { Minute } & 71 & 32 & 13 & 74 & 35 & 26 & 87 & 48 & 59 & 50 & 11 & 22 & 13 & 64\end{array}$ Arrange observations chronologically.

A disadvantage of teams is:

The manager of Lawn and Garden Services would like to estimate the proportion of her employees' time spent performing various gardening and lawn care activities. She has made 400 random observations of a typical worker, with the following results: $\begin{array} { l r } \text { Activity } & \text { Times Observed } \\\hline \text { Mowing } & 200 \\\text { Trimming } & 80 \\\text { Raking } & 40 \\\text { Miscellaneous } & 80\end{array}$ What is the probability that the true proportion of time spent mowing is exactly equal to the sample proportion?

One potential disadvantage of self-directed teams is higher training costs.

A simo chart includes:

A major advantage of job specialization in business is increased:

A methods and measurements analyst for Timepiece, Inc., needs to develop a time standard for the task of attaching a watch to a wristband. In a preliminary study, he observed one of his workers perform this task five times, with the following results: $\begin{array} { l r r r r r } \text { Observation } & 1 & 2 & 3 & 4 & 5 \\\hline \text { Time (seconds) } & 27 & 19 & 20 & 21 & 13\end{array}$ What is the observed time for this task?

Which of the following is not an advantage of time-based pay systems?

A worker-machine chart can help identify nonproductive parts of a process.