Use the-distribution and the sample results to complete the test of the hypotheses. Use a 5% significance level. Assume the results come from a random sample, and if the sample size is small, assume the underlying distribution is relatively normal.
Test null hypothesis: u = 100 vs alternative hypothesis: u < 100 using the sample results,x-bar = 91.7, s = 12.5 with n = 30.
Test- statistic = ?
p-value = ?
reject or do not reject null hypothesis?