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(Solution Library) A researcher randomly sampled 30 graduates of an MBA program and recorded data concerning their starting salaries. Of primary interest to the

Question: A researcher randomly sampled 30 graduates of an MBA program and recorded data concerning their starting salaries. Of primary interest to the researcher was the effect of gender on starting salaries. Analysis of the mean salaries of the females and males in the sample is given below. Suppose the researcher was attempting to show statistically that the female MBA graduates have a significantly lower mean starting salary than the male MBA graduates.

Hypothesized Difference 0
Level of Significance 0.05
Population 1 Sample
Sample Size 18
Sample Mean 48266.7
Sample Standard Deviation 13577.63
Population 2 Sample
Sample Size 12
Sample Mean 55000
Sample Standard Deviation 11741.29
Difference in Sample Means -6733.3
t -Test Statistic -1.40193
Lower-Tail Test
Lower Critical Value -1.70113
p -Value 0.085962
  1. According to the test run, state an appropriate alternative hypothesis.
  2. From the analysis in Table 10-2, what is the correct test statistic? Explain how you obtain your answer.
  3. What is the 95% confidence interval estimate for the difference between two means? Show how you obtain your answer.
  4. What conclusion do you reach for this test? Explain how you obtain your answer.

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Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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