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Previous Problem List Next 1 point) A study is conducted to determine if a newly designed text book is more helpful to learning the material than the old edition. The mean score on the final exam for a course using the old edition is 75. Ten randomly selected people who used the new text took the final exam. Their scores are shown in the table below. Person ABCDEFGHIJ Test Score 73 95 86 82 88 70 79 68 97 92 Use a 0.01 significance level to test the claim that people do better with the new edition. Assume that the scores are normally distributed and that the population standard deviation is 10.7 (a) What kind of test should be used? A. One-Tailed B. Two-Tailed C. It does not matter. b) The tost statistic is (rounded to 2 decimals). (c) The P-value is (d) Is there sufficient evidence to support the claim that people do botter than 75 on this exam? A. No B. Yes (e) Construct a 99% confidence interval for the mean score for students using the new text. Note: You can earn partial credit on this probiem. Preview My Answers Submit Answens You have attempted this problem 0 times
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