Instruction 15-4
One Criterion Used to Evaluate Employees in the Assembly

question 25

Multiple Choice

Instruction 15-4
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.
Years Since Training Period
$$\begin{array} { | r | l | c | c | c | } \hline & & < \mathbf { 1 } \text { Year } & \text { 1 - 4 Years } & \text { 5 - 9 Years } \\\hline & \text { High } & 6 & 9 & 9 \\\hline \text { Defect Rate: } & { \text { Average } } & 9 & 19 & 23 \\\hline & \text { Low } & 7 & 8 & 10 \\\hline\end{array}$$
-Referring to Instruction 15-4,of the cell for 1 to 4 years of training time and a high defect rate,what is the contribution to the overall ?² statistic for the independence test?

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

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Definitions:

Child Support

Monetary payments by the noncustodial parent to the custodial parent to help pay for child-rearing expenses.

Breadwinner Father

A traditional role where the father is the primary provider for the financial needs of the family.

Economic Responsibility

involves the obligation to make decisions and act in ways that positively affect the economic well-being of society, including responsible spending, investing, and resource allocation.

Involved Father

A father who actively participates in the upbringing and care of his children, contributing significantly to their developmental needs.