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02-01-2023
Mathematics

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Professors regularly give two versions of an exam. The professor may also provide summary statistics for each version. Suppose the following summary is provided: Version A Version BSample size 45 65Mean score 8. 8 8. 2Sample variance 2. 6 2. 4(a) What is the test value for this hypothesis test?(b) What is/are the critical value(s) for this hypothesis test? If there are two critical values, give only the positive value. (c) What is the conclusion for this hypothesis test? Choose one. 1. There is not sufficient evidence to show that one version of the exam is more difficult than the other. 2. There is sufficient evidence to show that one version of the exam is more difficult than the other

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