Question

For a hypothesis test of H0:p1 − p2 = 0 against the alternative Ha:p1 − p2 ≠ 0, the test statistic is found to be 2.15. Which of the following statements can you make about this finding?

The result is significant at both α = 0.05 and α = 0.01.

The result is significant at α = 0.05 but not at α = 0.01.

The result is significant at α = 0.01 but not at α = 0.05.

The result is not significant at either α = 0.05 or α = 0.01.

The result is inconclusive because we don't know the value of p.