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

question 58

Multiple Choice

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. $$\begin{array} { r r | | c c c } & & { \text { Years Since Training Period } } \\& & < 1 \text { Year } & 1 - 4 \text { Years } & 5 - 9 \text { Years } \\\hline \hline { \text { Defect Rate: } } & \text { High } & 6 & 9 & 9 \\& \text { Average } & 9 & 19 & 23 \\&\text { Low } & 7 & 8 & 10\end{array}$$
-Referring to Scenario 12-10, for the cell with 1 to 4 years of training time and a high defect rate, what is the contribution to the overall $\chi$ 2 statistic for the independence test?

• A)0.36
• B)0.1296
• C)0.015
• D)0.0144

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Definitions:

Psychological Perspectives

Viewpoints or approaches within psychology that emphasize different aspects of human behavior and mental processes.

Functional

Pertaining to the purposeful and practical use or action of something, often implying that it is designed based on its utility.

Cognitive

Pertaining to mental processes such as perception, memory, judgment, and reasoning.

Biological

refers to the processes and phenomena inherent to living organisms, encompassing their physical structure, biochemical processes, growth, and development.