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SCENARIO 12-10 One Criterion Used to Evaluate Employees in the Assembly

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SCENARIO 12-10 One criterion used to evaluate employees in the assembly section of a large factory is the number of defective pieces per 1,000 parts produced.The quality control department wants to find out whether there is a relationship between years of experience and defect rate.Since the job is repetitious, after the initial training period any improvement due to a learning effect might be offset by a loss of motivation.A defect rate is calculated for each worker in a yearly evaluation. The results for 100 workers are given in the table below. SCENARIO 12-10 One criterion used to evaluate employees in the assembly section of a large factory is the number of defective pieces per 1,000 parts produced.The quality control department wants to find out whether there is a relationship between years of experience and defect rate.Since the job is repetitious, after the initial training period any improvement due to a learning effect might be offset by a loss of motivation.A defect rate is calculated for each worker in a yearly evaluation. The results for 100 workers are given in the table below.   -Referring to Scenario 12-10, which test would be used to properly analyze the data in this experiment to determine whether there is a relationship between defect rate and years of experience? A)    test for independence B)    test for differences among more than two proportions C) Wilcoxon rank sum test for independent populations D) Kruskal-Wallis rank test
-Referring to Scenario 12-10, which test would be used to properly analyze the data in this experiment to determine whether there is a relationship between defect rate and years of experience?


Definitions:

Elastic

Describes a situation where the quantity demanded or supplied of a good or service is highly responsive to changes in its price.

Inelastic

Characterizes a situation where the demand for a product is not significantly affected by changes in price.

Elastic

Describes a situation in economics where the demand for a product or service significantly changes in response to a change in price.

Inelastic

A characteristic of goods or services for which demand does not significantly change with a change in price.

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