Introductory Statistics (10th Edition)
10th Edition
ISBN: 9780321989178
Author: Neil A. Weiss
Publisher: PEARSON
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Textbook Question
Chapter 7.2, Problem 55E
For Exercises 7.55–7.57, refer to Equations (7.1) and (7.2) on pages 315 and 316, respectively.
7.55 Suppose that a simple random sample is taken without replacement from a finite population of size N.
- a. Show mathematically that Equations (7.1) and (7.2) are identical for
samples of size 1. - b. Explain in words why part (a) is true.
- c. Without doing any computations, determine σx for samples of size N without replacement. Explain your reasoning.
- d. Use Equation (7.1) to verify your answer in part (c).
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Chapter 7 Solutions
Introductory Statistics (10th Edition)
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