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Introductory Statistics (10th Edition)
10th Edition
ISBN: 9780321989178
Author: Neil A. Weiss
Publisher: PEARSON
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Question
Chapter 7.2, Problem 58E
a.
To determine
Obtain 50 samples of four digits between 0 and 9 and compute the
b.
To determine
Find the mean, standard deviation, and distribution of all possible sample means for samples of size 4.
c.
To determine
Explain what should be the expected mean and standard deviation of the 50 samples means obtained in part (a) to be.
d.
To determine
Obtain the mean and standard deviation of the 50 samples means obtained in part (a).
e.
To determine
Compare the answers obtained in part (c)and part (d) and explain why they are different
Expert Solution & Answer
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Theorem 7.6 (Etemadi's inequality)
Let X1, X2,
X, be independent random variables. Then, for all x > 0,
P(max |S|>3x) ≤3 max P(S| > x).
Isk≤n
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S√2),
-S√2).
P(max Sk>x) ≤ 2P(|S|>x-
1
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Chapter 7 Solutions
Introductory Statistics (10th Edition)
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