A hypothesis test is performed to test the claim that a popu

A hypothesis test is performed to test the claim that a population proportion is greater than 0.7. Find the probability of a type II error, , given that the true value of the population proportion is 0.72. The sample size is 50 and the significance level is 0.05.

Solution

Here n = 50, alpha = 0.05, x bar 0.7 and mu A = 0.72

Hence Beta error = 0.9207