The starting salaries of recent graduates and their majors in college were surveyed. Specifically, 300 graduates were included in the survey. You conduct a test to determine whether majors and starting salaries are independent. Data are given below. Compute the test statistic. Majors 70000$ Total Computer science 30 71 25 126 Food science 14 33 15 62 Economics 12 39 13 64 Chemistry 10 28 10 48 Total 66 171 63 300