Mimi was curious if regular excise really helps weight loss, hence she decided to perform a hypothesis test. A random sample of 5 UMUC students was chosen. The students took a 30- minute exercise every day for 6 months. The weight was recorded for each individual before and after the exercise regimen. Does the data below suggest that regular exercise helps weight loss?
Assume we want to use a 0.05 significance level to test the claim.
STAT200 FINAL EXAM A
(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. Show all work; writing the correct critical value, without supporting work, will receive no credit.
- (d) ?Is there sufficient evident to support the claim that regular exercise helps weight loss? Justify your conclusion.
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