9. A national equal employment opportunities committee is conducting an investigation to determine if women employees are as well paid as their male counterparts in comparable jobs. Random samples of 75 males and 64 females in junior academic positions are selected and the following calculations are obtained from their salary data. Male Salaries Female Salaries Mean Standard Deviation $58,530 $780 $57,620 $750 Does the data support the hypothesis that the mean salary of men is higher than that of women in junior academic positions? Test this hypothesis at a = 0.01.