Problem 2: Annual Salary for College Graduates (there is no data file for this problem)

A recent study was conducted to investigate if starting annual salaries differ for otherwise

comparable graduates from different universities. From a one-year follow up survey from two universities, one university on the east coast and one on the west coast, data were collected for 200 graduates from both schools with the starting annual salary for students who have found employment.

University 1 University 2

Sample size, n 200 200

Sample mean, $50,900 $49,300

Sample standard deviation$5,900 $6,500

a)Define the population parameter of interest in context of this question in one sentence.

b)Imagine you were using a hypothesis test to determine if a significant difference exists in the average annual salaries of the graduates between the two universities.State the hypotheses you would use to test this claim.