1. Two independent random samples of annual starting salaries for individuals with masters and bachelors degrees in business were taken and the results are shown below a. Can we conclude from the sample results that the average starting salaries of Masters degee is higher than the average starting salaries of the Bachelors degree. Test at a: = 0.01. b. If the sample sizes are reduced to 711 = 15 and n2 = 10: state the assumption needed to conduct the t-test for the claim in part (a) and construct a 95% condence interval for the difference between the average starting salaries for both degrees