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You are testing the claim that the mean GPA of night students is different from the mean GPA of day students. A sample of 9
You are testing the claim that the mean GPA of night students is different from the mean GPA of day
students. A sample of night students and day students and their GPA's are recorded below. Test the
claim using a level of significance. Assume the population variances are unequal and that GPAs are
normally distributed. Give answers to decimal places. Note that Welch approximation is used!!!
What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbols
in the order they appear in the problem.
: Select an answer
Select an answer
: Select an answer
Select an answer
Based on the hypotheses, find the following:
Test Statistic enter absolute value!!!
pvalue
The correct decision is to
The correct summary would be: Select an answer
that the mean GPA of
night students is different from the mean GPA of day students.
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