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Exam 7: Work Design and Measurement

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Question 71

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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 A?

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Question 72

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It would be acceptable to use a group incentive plan for an assembly line operation.

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B) False

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Question 73

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One factor in determining how many cycles to time in a time study is the degree of variation that is present in the observed times.

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: $\begin{array} { l r r r r r } \text { Observation } & 1 & 2 & 3 & 4 & 5 \\\hline \text { Time (seconds) } & 84 & 76 & 80 & 84 & 76\end{array}$ What is the normal time for this task if the employee worked at a 25 percent faster pace than average?

Increasing compensation is always a way to improve worker satisfaction.

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 20 percent faster than average, what should be the normal time for this task?

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: $\begin{array} { l r r r r r r } \text { Observation } & 1 & 2 & 3 & 4 & 5 & 6 \\\hline \text { Time (seconds) } & 99 & 87 & 90 & 81 & 93 & 90\end{array}$ 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?

Job design relates to people, therefore technology has little impact.

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: $\begin{array} { l r r r r r } \text { Observation } & 1 & 2 & 3 & 4 & 5 \\\hline \text { Time (seconds) } & 84 & 76 & 80 & 84 & 76\end{array}$ What is the standard time for this task if the employee worked at a 25 percent faster pace than average and an allowance of 20 percent of job time is used?

The chart used to review the overall sequence of an operation by focusing on the movements of either the operator or materials is called a:

A technique for estimating the proportion of time a worker spends on various activities is:

How many observations would be required in a time study in order to obtain 95 percent confidence that the average time observed was no more than 0.6 minutes from the true mean, assuming a standard deviation of cycle time of 1.8 minutes?

An analyst has observed 28 work cycles, for which the average cycle time was five minutes and the performance rating was 1.05. Allowances for the department are 25 percent of job time. What standard time is appropriate for this job?

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

Which of the following is not characteristic of time-based compensation plans?

Eight instances of a worker doing a task were observed as follows: $\begin{array} { l r r r r r r r r } \text { Observation } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 \\\hline \text { Time (seconds) } & 17 & 18 & 15 & 14 & 13 & 15 & 16 & 12\end{array}$ What is the observed time for this task?

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 standard time for this task if the employee worked at a 20 percent faster pace than average, and an allowance of 20 percent of the workday is used?

Eight instances of a worker doing a task were observed as follows: $\begin{array} { l r r r r r r r r } \text { Observation } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 \\\hline \text { Time (seconds) } & 17 & 18 & 15 & 14 & 13 & 15 & 16 & 12\end{array}$ How many observations would be needed 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 two seconds.

The owner of Touchdown Sports Bar wants to develop a time standard for the task of mixing a specialty cocktail. In a preliminary study, he observed one of his bartenders perform this task seven times with an average of 90 seconds and a standard deviation of five seconds. What is the standard time for this task if the bartender worked at a 20 percent faster pace than is average, and an allowance of 20 percent of the workday is used?

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: $\begin{array} { l r r r r r r } \text { Observation } & 1 & 2 & 3 & 4 & 5 & 6 \\\hline \text { Time (seconds) } & 99 & 87 & 90 & 81 & 93 & 90\end{array}$ 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?