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n a study of freshman weight gain, the measured weights of 5 randomly selected college students in September and April of their freshman year are
n a study of freshman weight gain, the measured weights of 5 randomly selected college students in September and April of their freshman year are shown in the following table.
Weight (kg) | |
Student | September April |
1 2 3 4 5 | 67 66 53 55 64 68 71 70 70 75 |
Is there evidence to suggest that the mean weight of the freshmen in April is greater than the mean weight in September?
STAT200 FINAL EXAM A
Assume we want to use a 0.10 significance level to test the claim.
- (a) Identify the null hypothesis and the alternative hypothesis.
- (b) Determine the test statistic. Show all work; writing the correct test statistic, without supporting work, will receive no credit.
- (c) Determine the P-value for this test. Show all work; writing the correct P-value, without supporting work, will receive no credit.
- (d) Is there sufficient evidence to support the claim that the mean weight of the freshmen in April is greater than the mean weight in September? Justify your conclusion.
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