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

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 $> 28 \%$