Discussion:
Q: The American Association of University Professors conducts salary studies of college professors and publishes its finding in the AAUP Annual Report. College professors are divided into two populations: faculty in public institutions and faculty in private institutions. The summary statistics for the starting salaries of the two populations are given below. Use the traditional method to test for a difference in the means of the two groups at the 0.02 level of significance. Find the 98% confidence interval for the difference between the two means and interpret the result.
Institution
Sample 1:Public mean -$33,890 sd-$1,820 n-37
Sample 2: Private mean- $32,610 sd-$1,730 n-35.