The hcbc believes that the average starting salary of its...

The HCBC believes that the average starting salary of its MBA graduates is more than $75,000. A sample of 50 graduates indicates a starting salary of $76,000. The historical population standard deviation of salary offers is $2,000. State the null and alternate hypotheses and conduct the appropriate test at a level of significance of 0.05

Researchers randomly sampled 30 graduates of an MBA program and recorded data concerning their starting salaries. One of the primary interests to the researcher was the effect of gender on starting salaries. The goal was to determine whether female MBA graduates have a significantly lower mean starting salary than male MBA graduates. Using a significance level of 0.05, summary statistics on salary measurements are shown in the table below. State the appropriate null and alternative hypotheses for this problem, including identifying any of the parameters used in terms of this problem. Identify and explain which test statistic formula you could use to test this hypothesis, including the distribution and degrees of freedom involved. Calculate the test statistic (by hand). Determine the rejection region.

Adi S.

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