6. Information regarding the starting salaries (in $1000) of samples of students in four different majors is given below.(15%) Majors | | Management | Marketing | Finance | Accounting | | --- | --- | --- | --- | --- | | Sample size | 12 | 10 | 9 | 14 | | Average | 26 | 31 | 22 | 25 | | Sample variance | 10 | 7 | 15 | 9 | a. Formulate the hypotheses to determine whether there is a significant difference in the means of the four populations.