Exhibit 12-2 Last School Year, the Student Body of a Local University

question 63

Multiple Choice

Exhibit 12-2
Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 300 students taken from this year's student body showed the following number of students in each classification. We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year.
-Refer to Exhibit 12-2. The calculated value for the test statistic equals

• A)0.5444
• B)300
• C)1.6615
• D)6.6615

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Definitions:

Immunity

The body's ability to resist or eliminate potentially harmful foreign materials or abnormal cells, including those causing disease.

Relaxation Training

Techniques and exercises designed to reduce stress and promote physical and mental calmness.

Perceived Stress

The subjective assessment of how much stress one feels in response to environmental or internal stimuli.

Cognitive Behavioral Interventions

Therapeutic approaches that aim to change patterns of thinking or behavior that are causing people's suffering or impeding their progress towards personal goals.