Question

Test H₀: π = 0.25 versus H_A: π ¹ 0.25 with p = 0.33 and n = 100 at alpha = 0.05 and 0.10.

Answer 1

here direction at Ha is not given if it is

at 0.05 level

as test statistic 1.85 is not in rejection region we can not reject null hypothesis at 0.05 level

for 0.10 level critical values =-/+1.645 and therefore test statistic 1.85 is in rejection region and therefore we reject null hypothesis at 0.10 level