Use the Sign Test to Test the Indicated Claim

question 103

Multiple Choice

Use the sign test to test the indicated claim. A researcher wishes to test whether a particular diet has an effect on blood pressure. The blood pressure of 24 randomly selected adults is
Measured. After one month on the diet, each person's blood pressure is again measured. For
18 people, the second blood pressure reading was lower than the first, and for 6 people, the
Second blood pressure reading was higher than the first. At the 0.01 significance level, test the
Claim that the diet has an effect on blood pressure. What would be the value of the test
Statistic, x?

• A)19
• B)6
• C)13
• D)5

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Definitions:

Ableism

Discrimination and social prejudice against people with disabilities, favoring those who are not disabled.

Downward Drift Hypothesis

The assertion that those with mental illnesses, unable to finish their education or secure a job, tend to drift into low-income groups.

Mental Disorders

A wide range of conditions that affect mood, thinking, and behavior, often leading to distress and impairment in daily functioning.

Retirement Income

Income that an individual receives after retiring from active employment, which can come from pensions, savings, investments, or government programs.