A hypothesis test is to be performed. State the null and alternative hypotheses. -During one flu epidemic the proportion of adults nationwide who have come down with the flu is $8 \%$. The manufacturer of a flu vaccine claims that those who have been vaccinated are less likely to catch the flu. A) Null hypothesis: proportion of those vaccinated catching the flu $= 8 \%$ Alternative hypothesis: proportion of those vaccinated catching the flu $

Question

A hypothesis test is to be performed. State the null and alternative hypotheses.
-During one flu epidemic the proportion of adults nationwide who have come down with the flu is $8 \%$. The manufacturer of a flu vaccine claims that those who have been vaccinated are less likely to catch the flu.
A) Null hypothesis: proportion of those vaccinated catching the flu $= 8 \%$
Alternative hypothesis: proportion of those vaccinated catching the flu $< 8 \%$
B) Null hypothesis: proportion of those vaccinated catching the flu $= 8 \%$
Alternative hypothesis: proportion of those vaccinated catching the flu $\leq 8 \%$
C) Null hypothesis: proportion of those vaccinated catching the flu $< 8 \%$
Alternative hypothesis: proportion of those vaccinated catching the flu $= 8 \%$
D) Null hypothesis: proportion of those vaccinated catching the flu $> 8 \%$
Alternative hypothesis: proportion of those vaccinated catching the flu $< 8 \%$

Quizplus · Accepted Answer

The null hypothesis typically states there is no effect or no difference, so it would assert that the proportion of vaccinated individuals catching the flu is the same as the general rate (8%). The alternative hypothesis reflects the manufacturer's claim that the vaccine reduces the likelihood of catching the flu, hence the proportion should be less than 8%.

A Hypothesis Test Is to Be Performed 8%8 \%8% the Manufacturer of a Flu Vaccine Claims That Those

A Hypothesis Test Is to Be Performed $8 \%$ the Manufacturer of a Flu Vaccine Claims That Those