Salary equity study of faculty at a certain university

#1 in a salary equity study of faculty at a certain university, the salaries of 50 male assistant professors showed a sample mean of $36,400 with a sample standard deviation of 360, whereas the salaries of 50 female assistant professors chosen independently showed a sample mean of $34,200 with a sample standard deviation of 220. Test the hypothesis by manual calculations that the mean salary of male assistant professors is more than the mean salary of female assistant professors at this university. Use alpha = 0.05.

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...ors chosen independently showed a sample mean of $34,200 with a sample standard deviation of 220. Test the hypothesis by manual calculations that the mean salary of male assistant professors is more than the mean salary of female ...