suppose that a small college claims that a majority of thier student graduate within four years. Arandom survey of 250 alumni find that 145 of the graduated within 4 years. given that the pair of hypothises that correspond to the claim are as follows Ho:p_< (line under the lesser than symbol) 0.50 H1:p>0.50 find the critical value of the hyphotisis test. Assume that the significance level is a=0.03 Solution The critical value of z in a one-sided test with alpha=0.03 is 1.881..