Perform the Indicated Wilcoxon Test $$\alpha =$$ 05

question 28

Essay

Perform the indicated Wilcoxon test. Be sure to do the following: Identify the claim mathematically and state the null
and alternative hypotheses. Determine the critical value and find the test statistic. Decide whether to reject or fail to
reject the null hypothesis and interpret the decision in the context of the original claim.
-A physician claims that a personʹs diastolic blood pressure can be lowered by listening to a relaxation tape each
evening. Ten subjects are randomly selected and their blood pressures are measured. The 10 patients then listen
to the tapes each evening for one month. At the end of the month, their blood pressures are measured again.
The data (in mm Hg)are listed below. Use the Wilcoxon signed-rank test to test the physicianʹs claim. Use $$\alpha =$$ .05. $$\begin{array} { l c c c c c c c c c c } \hline \text { Patient } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\\hline \text { Before } & 83 & 82 & 99 & 86 & 90 & 80 & 91 & 94 & 92 & 81 \\\text { After } & 80 & 76 & 99 & 78 & 84 & 69 & 94 & 84 & 88 & 65 \\\hline\end{array}$$

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Definitions:

Ritualistic Hand Washing

A behavior often associated with obsessive-compulsive disorder, characterized by excessive and repetitive washing of hands in a ritualistic manner.

Effective Coping

The use of healthy strategies to deal with stress or adversity, maintain emotional well-being, and resolve conflicts.

Social Activities

Activities designed to facilitate interaction and communication among people, promoting social connections and a sense of community.

Severe Anxiety

An intense state of fear or dread that can interfere with daily activities, often requiring professional intervention for management.