A Hypothesis Test Is to Be Performed $28 \%$ Of Those Taking the Placebo Reported Improvement

question 202

Multiple Choice

A hypothesis test is to be performed. State the null and alternative hypotheses.
-In a clinical study of an arthritis medication, $28 \%$ of those taking the placebo reported improvement. The manufacturer of the medication claims that among those taking the medication, the proportion reporting improvement will be higher than this.

• A) Null hypothesis: proportion reporting improvement \(> 28 \%\)
• Alternative hypothesis: proportion reporting improvement \(= 28 \%\)
• B) Null hypothesis: proportion reporting improvement \(= 28 \%\)
• Alternative hypothesis: proportion reporting improvement \(> 28 \%\)
• C) Null hypothesis: proportion reporting improvement \(= 28 \%\)
• Alternative hypothesis: proportion reporting improvement \(\geq 28 \%\)
• D) Null hypothesis: proportion reporting improvement \(< 28 \%\)
• Alternative hypothesis: proportion reporting improvement \(> 28 \%\)

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Definitions:

Rice Plantation

A large agricultural estate specifically designed for the cultivation of rice, often found in the southern United States before the Civil War, and reliant on enslaved labor.

Harsh Conditions

Refers to environments or situations that are extremely difficult to endure or survive in due to severe weather, lack of resources, or challenging circumstances.

Task Labor System

A labor system, notably used in plantation agriculture, where enslaved people were assigned specific tasks to complete each day, after which they had some degree of autonomy.

West Africa

A region located in the western part of the African continent, comprising 16 countries and noted for its diverse cultures, languages, and economic activities.