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# (Solved): Some students did poorly on their Math class final exam in the spring. Some of the students then re ...

Some students did poorly on their Math class final exam in the spring. Some of the students then repeated the course in the summer and took another exam in the summer. (Assume all samples are from a population with a normal distribution). Here are the statistics:

 For the Spring \bar{x} =58.0 points, s=5.40 points, n=12 For the Summer \bar{x} =70.5 points, s=6.62 points, n=9

Use this information to test the claim that the scores increase from spring to summer, at the significance level of 0.05. Be sure to set your TEST up to include all parts (a-f as seen from the previous problem). (Note: The conclusion must be a written statement commenting on the original claim.) Find a Confidence Interval with a Confidence Level that works with the significance level of the Hypothesis Test. List the CL that you use. Do the results of the CI support the conclusion of the Hypothesis Test?

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