Null and alternative hypothesis


Test the claim that the mean GPA of night students is smaller than the mean GPA of day students at the .05 significance level.

What are the null and alternative hypothesis?

The sample consisted of 55 night students, with a sample mean GPA of 3.32 and a standard deviation of 0.07, and 50 day students, with a sample mean GPA of 3.33 and a standard deviation of 0.02.

What is the test statisitc and critical value? Reject or Fail to reject null hypothesis?

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Basic Statistics: Null and alternative hypothesis
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