Elementary Statistics: A Step By Step Approach

9th Edition

ISBN: 9780073534985

Author: Allan Bluman

Publisher: McGraw-Hill Science/Engineering/Math

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Textbook Question

Chapter 8.4, Problem 21EC

When np or nq is not 5 or more, the binomial table (Table B in Appendix A) must be used to find critical values in hypothesis tests involving proportions.

21. Coin Tossing A coin is tossed 9 times and 3 heads appear. Can you conclude that the coin is not balanced? Use α = 0.10. [Hint: Use the binomial table and find 2P(X ≤ 3) with p = 0.5 and n = 9.]

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Chapter 8.4, Problem 20E

Chapter 8.4, Problem 22EC

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Chapter 8 Solutions

Elementary Statistics: A Step By Step Approach

Ch. 8.1 - Applying the Concepts 81 Eggs and Your Health The...Ch. 8.1 - Define null and alternative hypotheses, and give...Ch. 8.1 - What is meant by a type I error? A type II error?...Ch. 8.1 - What is meant by a statistical test?Ch. 8.1 - Explain the difference between a one-tailed and a...Ch. 8.1 - What is meant by the critical region? The...Ch. 8.1 - What symbols are used to represent the null...Ch. 8.1 - What symbols are used to represent the...Ch. 8.1 - Explain what is meant by a significant difference.Ch. 8.1 - When should a one-tailed test be used? A...

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