In a hypothesis test with hypotheses H0 : p ≥ 0.31 and H1 : p < 0.31, a random sample of size 502 produced a sample proportion of 0.2730. The test is to be made at the 2% significance level. What is the critical value of z? -2.05 -1.714 -2.33 -1.645 What is the value of the test statistic, z, rounded to three decimal places? What is the p-value for this hypothesis test, rounded to four decimal places? Should you reject or fail to reject the null hypothesis in this test?