In a hypothesis test with hypotheses
Ho : μ ≤ 45 and
H1: μ > 45, a random sample of
62 elements selected from the population produced a mean of 46.8.
Assume that SD= 7.2, and that the test is to be made at the 2.5%
significance level.
-What is the critical value of z? 1-.96, 1.65, 1.96,
-1.65
-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 we reject or fail to reject the null hypothesis
test?