3. In a certain factory, a random sample of 49 male employees showed a mean salary of Php25,000 with a standard deviation of Php2,500. A random sample of 30 female employees showed a mean salary of Php22,800 with a standard deviation of Php 1,900. TEST if there is NO difference in the population mean salaries for the male and female Is there a reason to believe that the true mean salaries are equal? Test at a = .05.

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