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Exam 9: Work Design and Measurement

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Question 51

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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: $\begin{array} { | l | c | c | c | c | c | } \hline \text { Observation } & 1 & 2 & 3 & 4 & 5 \\\hline \text { Time(Seconds) } & 27 & 19 & 20 & 21 & 13 \\\hline\end{array}$ How many observations should be made if he wants to be 95.44 percent confident that the maximum error in the observed time is one second? Assume that the standard deviation of the task time is five seconds.

A)  5
B)  10
C)  25
D)  100
E)  121

F) A) and C)
G) A) and D)

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Question 52

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Increasing compensation is always the best way to improve worker satisfaction.

A) True
B) False

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Question 53

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The normal time in time study is obtained by multiplying the observed time by the performance rating.

Giving a worker a larger portion of the total task is known as job:

Job enrichment involves giving a workers a greater share of the total task, which is why they feel enriched.

A worker-machine chart can be used to determine how many machines an operator can manage.

One potential disadvantage of self-directed teams is higher turnover and absenteeism.

Work sampling provides both quick and accurate estimates of activity times.

The owner of Kat Motel wants to develop a time standard for the task of cleaning a cat cage. In a preliminary study, she observed one of her workers perform this task six times, with the following results: $\begin{array} { | l | c | c | c | c | c | c | } \hline \text { Observation } & 1 & 2 & 3 & 4 & 5 & 6 \\\hline \text { Time(Seconds) } & 99 & 87 & 90 & 81 & 93 & 90 \\\hline\end{array}$ What is the standard time for this task if the employee worked at a 50 percent faster pace than average, and an allowance of 20 percent of job time is used?

In calculating standard times, allowance percentages normally would consider all of the following except:

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: $\begin{array} { | l | c | c | c | c | c | c | } \hline \text { Observation } & 1 & 2 & 3 & 4 & 5 & 6 \\\hline \text { Time(Seconds) } & 46 & 38 & 40 & 34 & 42 & 40 \\\hline\end{array}$ What is the standard time for this task if the employee worked at a 20 percent faster pace than average and an allowance of 25 percent of the workday is used?

A methods and measurement analyst wants to develop a time standard for a certain task. In a preliminary study, he observed one worker perform the task six times with an average observed time of 20 seconds and a standard deviation of two seconds. How many observations should be made if he wants to be 95.44 percent confident that the maximum error in the observed time is one second?

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

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: $\begin{array} { | l | c | c | c | c | c | c | } \hline \text { Observation } & 1 & 2 & 3 & 4 & 5 & 6 \\\hline \text { Time(Seconds) } & 46 & 38 & 40 & 34 & 42 & 40 \\\hline\end{array}$ How many observations should be made if she wants to be 86.64 percent confident that the maximum error in the observed time is .5 second? Assume that the standard deviation of the task time is four seconds.

A job had an observed time of 10 minutes and a performance rating of .90 based on twenty-five cycles that were timed. The allowance is 20 percent of job time. Standard time for the job in minutes is:

Which of the following concerns is not one that job designers focus on?

The methods analysis chart which describes the portions of a work cycle during which an operator and equipment are busy or idle is a:

The owner of Kat Motel wants to develop a time standard for the task of cleaning a cat cage. In a preliminary study, she observed one of her workers perform this task six times, with the following results: $\begin{array} { | l | c | c | c | c | c | c | } \hline \text { Observation } & 1 & 2 & 3 & 4 & 5 & 6 \\\hline \text { Time(Seconds) } & 99 & 87 & 90 & 81 & 93 & 90 \\\hline\end{array}$ What is the standard time for this task if the employee worked at a 50 percent faster pace than average, and an allowance of 10 percent of the workday is used?

A methods and measurements analyst needs to develop a time standard for a certain task. In a preliminary study, he observed one of his workers perform this task five times, with the following results: $\begin{array} { | l | c | c | c | c | c | } \hline \text { Observation } & 1 & 2 & 3 & 4 & 5 \\\hline \text { Time(Seconds) } & 84 & 76 & 80 & 84 & 76 \\\hline\end{array}$ How many observations should be made if the analyst wants to be 99.74 percent confident that the maximum error in the observed time is two seconds? Assume that the standard deviation of the task time is four seconds.

A disadvantage of teams is: