Grade Point Average Variances at a 0.05 Level of Significance
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Assuming that the population variances are equal for male and female Grade Point Averages (GPAs), use the following sample data to test whether the averages are different at the 0.05 level of significance.
Male GPA's Female GPA's
Sample Size 17 15
Sample Mean 3.8 3.95
Sample Standard Deviation .5 .7
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Solution Summary
This solution calculates whether the averages are different based on gender and a 0.05 level of significance.
Solution Preview
Hypotheses: H0: 1 = 2 vs. HA: 1 2
Level of Significance: a = 5%
Decision Rule: Reject the ...
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