You want to set up a test for the following hypotheses: H0: π > .4 Ha: π < .4 You will have a random sample of 200 population members to make your decision.
a. Suppose the sample proportion turns out to be .365. Compute the sample test statistic, z stat.
b. Using a significance level of .05, show the critical zscore (zc ) for the test and report your decision.