Last UB year, in the school of Business , 30% were Accounting majors, 24% Management majors, 26% Marketing majors, and 20% Economics majors. A sample of 300 students taken from this year's students of the school showed the following number of students in each major:

Accounting 85

Management 73

Marketing 80

Economics 62

Total 300

a. Calculate the test statistics.

b. We want to see if there has been a significant change in the number of students in each major. Has there been any significant change in the number of students in each major between the last school year and this school year. Use the p-value approach and let alpha = .05