Use the Sign Test to Test the Indicated Claim

question 4

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

Utilize precise language for clear and effective communication.

Correctly use idioms to enrich writing.

Appropriately use technical words and acronyms to enhance professional communication.

Understand the concept of ethnocentrism and its implications on cross-cultural communication.

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Definitions:

Drug Treatments

The use of medications to prevent, manage, or cure diseases or conditions.

Intracellular Processes

Biological functions and reactions that occur within a cell.

Severe Depression

A more intense form of depression characterized by profound sadness, lethargy, and a loss of interest in life.

Selective Serotonin Reuptake Inhibitors (SSRIs)

A class of medications primarily used in the treatment of depression and anxiety disorders by increasing the levels of serotonin in the brain.