a-researcher-claims-that-4040-of-adults-exercise-at-least-three-times-a-week-in-

Question

A researcher claims that $40 percent sign$ of adults exercise at least three times a week. In a survey of $500$ adults, $215$ said they exercise at least three times a week. At the $0.01$ significance level, test the researcher's claim.

Accepted Answer

Fail to reject the null hypothesis. There is no statistically significant evidence that the proportion is different from $40 percent sign$ .

Answer

Reject the null hypothesis. There is statistically significant evidence that the proportion is different from $40 percent sign$ .

Answer

Reject the null hypothesis. There is statistically significant evidence that the proportion is less than $40 percent sign$ .

Answer

Fail to reject the null hypothesis. There is statistically significant evidence that the proportion is greater than $40 percent sign$ .

A researcher claims that 40%40\% of adults exercise at least three times a week. In a survey of 500500 adults, 215215 said they exercise at least three times a week. At the 0.010.01 significance level, test the researcher's claim.

A researcher claims that $40 percent sign$ of adults exercise at least three times a week. In a survey of $500$ adults, $215$ said they exercise at least three times a week. At the $0.01$ significance level, test the researcher's claim.