Researchers are investigating the levels of a certain protein in the blood of mice. If that protein is above a measure of 4, the researchers believe that this is an indication of the presence of a tumor. They obtain a simple random sample of 100 mice with tumors and measure the average level of this protein in the blood of the mice. The hypotheses used in their research are: Ho: = 4 versus Ha: > 4 μ μ Which of the following would result in the lowest power for this test? Change the sample size to 50 with an alpha level of 0.01 Change the sample size to 50 with an alpha level of 0.05 Change the sample size to 200 with an alpha level of 0.05 Keep the sample size of 100 with an alpha level of 0.05 Keep the sample size of 100 with an alpha level of 0.01 Page 7 of 19

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