TABLE 12-4
One Criterion Used to Evaluate Employees in the Assembly

question 69

Multiple Choice

TABLE 12-4
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.
$$\begin{array}{l}\text {\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad Years Since Training Period }\\\begin{array} { r | r r c } & \text { < 1 Year } & 1 - 4 \text { Years } & 5 \text { - 9Years } \\\hline \text { High } & 6 & 9 & 9 \\\text { Defect Rate: Average } & 9 & 19 & 23 \\\text { Low } & 7 & 8 & 10\end{array}\end{array}$$
-Referring to Table 12-4, find the rejection region necessary for testing at the 0.05 level of significance whether there is a relationship between defect rate and years of experience.

• A) Reject H₀ if ?² > 16.919
• B) Reject H₀ if ?² > 9.488
• C) Reject H₀ if ?² > 11.143
• D) Reject H₀ if ?² > 15.507

Grasp the importance of screenings and preventive care in middle age.

Understand the role of stress and its effects on health.

Acknowledge the specific health challenges and risks faced by racial minorities.

Understand various memory strategies such as rehearsal, organization, and elaboration.

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Definitions:

Psychotherapy

A therapeutic intervention used to treat mental health problems, involving verbal communication between the client and therapist.

Muscle Contraction Headaches

A type of headache caused by the tightening of muscles in the neck and scalp, often due to stress.

Pain

An unpleasant sensory and emotional experience associated with actual or potential tissue damage.

Head

The upper part of the human body or the leading or uppermost part of something, typically containing the brain and sensory organs.