Scenario 4.3 A Job Consists of Three Elements.Twenty Observations for Each Element

question 136

Multiple Choice

Scenario 4.3
A job consists of three elements.Twenty observations for each element were timed,and the resulting data are shown in the following table.A performance rating has also been assigned for each element,as shown in the table.The job has an allowance of 15% of normal time.

-Use the information in Scenario 4.3.What is the normal time for job element #1?

• A)greater than or equal to 3 minutes
• B)less than 3 minutes but greater than or equal to 2.6 minutes
• C)less than 2.6 minutes but greater than or equal to 2.2 minutes
• D)less than 2.2 minutes

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Definitions:

Expected Count

The forecasted number of times an event is anticipated to occur in a statistical experiment.

Null Hypothesis

A hypothesis that assumes no effect, no difference, or no relationship between variables until evidence indicates otherwise.

Photograph Cover

The front image or picture on a magazine, book, or album designed to represent its contents or appeal to consumers.

Chi-square Statistic

A statistic that measures the difference between observed frequencies in a sample and the frequencies that would be expected by chance.