Question

Seventy-seven successes were observed in a random sample of

n = 120

observations from a binomial population. You wish to show that

p > 0.5.

Calculate the appropriate test statistic. (Round your answer to two decimal places.)

z =

Calculate the p-value. (Round your answer to four decimal places.)

p-value =

Do the conclusions based on a fixed rejection region of

z > 1.645

agree with those found using the p-value approach at

α = 0.05?

Yes, both approaches produce the same conclusion.No, the p-value approach rejects the null hypothesis when the fixed rejection region approach fails to reject the null hypothesis.     No, the fixed rejection region approach rejects the null hypothesis when the p-value approach fails to reject the null hypothesis.

Should they?

Yes? No?

Answer 1