Independent Random Samples of the Scores of 10 Daily Quizzes $\mu$

question 31

Essay

Independent random samples of the scores of 10 daily quizzes from day students and 15 quizzes from evening students were gathered. It was decided to use the Mann-Whitney-Wilcoxon test to determine if there is a significant difference between the scores of the two groups of students.
a.Provide the hypotheses for this test.
b.Compute the mean $\mu$ _T.
c.Compute the standard deviation $\sigma$ _T.
d.The sum of the ranks for the day students was determined to be 184.5. Compute the test statistic Z.
e.Use $\alpha$ = 0.05 and test to determine if there is a significant difference in the populations of the scores of the two groups.

Recognize the importance of the genus and differentia in creating definitions.

Identify and apply the rule against using negative terms unless defining inherently negative concepts.

Understand the concept of stipulative definitions and their role in defining terms.

Assess and correct definitions that violate clarity and precision.

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Definitions:

Autonomic Stress Response

The body's automatic reaction to stress, involving the sympathetic nervous system and resulting in physiological changes such as increased heart rate and blood pressure.

Posttraumatic Stress Disorder

A psychiatric disorder caused by encountering or observing a horrifying incident, marked by recurring flashbacks, nightmares, and heightened anxiety.

Increased Arousal

A state marked by heightened physiological and psychological activity, often as a response to a stimulus or stress.

Anxiety

Anxiety is a feeling of fear, dread, and uneasiness that may occur as a reaction to stress, often characterized by physical symptoms like increased heart rate.