Introductory Statistics (10th Edition)
10th Edition
ISBN: 9780321989178
Author: Neil A. Weiss
Publisher: PEARSON
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Textbook Question
Chapter 5.1, Problem 22E
Suppose that T and Z are random variables.
- a. If P(T > 2.02) = 0.05 and P(T < –2.02) = 0.05, determine P(–2.02 ≤ T ≤ 2.02).
- b. Suppose that P(–1.64 ≤ Z ≤ 1.64) = 0.90 and also suppose that P(Z > 1.64) = P(Z < –1.64). Find P(Z > 1.64).
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