A consumer advocacy group thinks that reduced-fat cookies contain more fat than claimed.They test the hypothesis $\mathrm { H } _ { 0 } : \mu = 2.5$ grams against $\mathrm { H } _ { \mathrm { A } } : \mu 2.5$ grams.

Question

A consumer advocacy group thinks that reduced-fat cookies contain more fat than claimed.They test the hypothesis $\mathrm { H } _ { 0 } : \mu = 2.5$ grams against $\mathrm { H } _ { \mathrm { A } } : \mu > 2.5$ grams.

Quizplus · Accepted Answer

The hypothesis being tested is that reduced-fat cookies contain more fat than claimed, which implies that the true mean weight of fat in the cookies is greater than the claimed weight. Therefore, an upper-tailed test is appropriate to determine whether the sample data provide enough evidence to reject the null hypothesis in favor of the alternative hypothesis that the true mean weight of fat is greater than the claimed weight.

A Consumer Advocacy Group Thinks That Reduced-Fat Cookies Contain More H0:μ=2.5\mathrm { H } _ { 0 } : \mu = 2.5H0​:μ=2.5

A Consumer Advocacy Group Thinks That Reduced-Fat Cookies Contain More $\mathrm { H } _ { 0 } : \mu = 2.5$