Elementary Statistics: Picturing the World (7th Edition)
7th Edition
ISBN: 9780134683416
Author: Ron Larson, Betsy Farber
Publisher: PEARSON

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Textbook Question
Chapter 7.2, Problem 31E

Hypothesis Testing Using a P-Value In Exercises 31–36,

1. (a) identify the claim and state H0 and Ha.
2. (b) find the standardized test statistic z.
3. (c) find the corresponding P-value.
4. (d) decide whether to reject or fail to reject the null hypothesis.
5. (e) interpret the decision in the context of the original claim.

31. MCAT Scores A random sample of 100 medical school applicants at a university has a mean total score of 502 on the MCAT. According to a report, the mean total score for the school’s applicants is more than 499. Assume the population standard deviation is 10.6. At α = 0.01, is there enough evidence to support the report's claim? (Source: Association of American Medical Colleges)

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