Essentials of Business Analytics (MindTap Course List)
Essentials of Business Analytics (MindTap Course List)
2nd Edition
ISBN: 9781305627734
Author: Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson
Publisher: Cengage Learning
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Chapter 6, Problem 7P

The College Board reported the following mean scores for the three parts of the SAT:

Chapter 6, Problem 7P, The College Board reported the following mean scores for the three parts of the SAT:

Assume that

Assume that the population standard deviation on each part of the test is σ = 100.

  1. a. For a random sample of 30 test takers, what is the sampling distribution of x ¯ for scores on the Critical Reading part of the test?
  2. b. For a random sample of 60 test takers, what is the sampling distribution of x ¯ for scores on the Mathematics part of the test?
  3. c. For a random sample of 90 test takers, what is the sampling distribution of x ¯ for scores on the Writing part of the test?
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Essentials of Business Analytics (MindTap Course List)

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