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Question: 6 and 7...

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6 and 7
6. Suppose we observe Y...Yn from a normal distribution with alaiuctess n 15 (a) Find the rejection region of a level a 0.05 test of Ho 20 vs. H20. Would this test reject with the given data? (b) Find the rejection region of a level a-0.05 test of H0 : 20 vs. Hi : > 20. Would this test reject with the given data? (c) Will the p-value for the given data be smaller in part (a) or (b)? Why? 7. Briefly describe a problem where linear regression might be of use. It should be an example with a continuous response variable and at least one continuous predictor. This may be an example you make up, or something you see in some published material or on the internet. Be sure to describe the response variable and predictor variable(s), and the substantive meaning of a linear relationship between them.

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