A two-tailed hypothesis test for H₀: π = .30 at α = .05 is analogous to: A)asking if the 90 percent confidence interval for π contains .30. B)asking if the 95 percent confidence interval for π contains .30. C)asking if the p-value (area in both tails combined) is less than .025. D)asking if the p-value (area in both tails combined) is less than .10.

Question

Quizplus · Accepted Answer

A two-tailed hypothesis test at a significance level of α = .05 is analogous to asking if the 95 percent confidence interval for π contains .30. This is because the confidence level (95%) plus the significance level (5%) sums to 100%, and the confidence interval approach and the hypothesis testing approach are conceptually linked in this way.

A Two-Tailed Hypothesis Test for H0: π =

A Two-Tailed Hypothesis Test for H₀: π =