The business college computing center wants to determine the proportion of business students who have personal computers (pc's) at home. if the proportion exceeds 30%, then the lab will scale back a proposed enlargement of its facilities. suppose 250 business students were randomly sampled and 75 have pc's at home. find the rejection region for this test using alpha = 0.05

reject h0 if z > 1.645.

reject h0 if z > 1.96 or z < -1.96.

reject h0 if z < -1.645.

reject h0 if z = 1.645.