Fundamentals of Statistics (5th Edition)
5th Edition
ISBN: 9780134508306
Author: Michael Sullivan III
Publisher: PEARSON
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Textbook Question
Chapter 11.3, Problem 4AYU
In Problems 1–6, assume that the populations are
4.
- a. Test whether μ1 < μ2 at the α = 0.05 level of significance for the given sample data.
- b. Construct a 95% confidence interval about μ1 − μ2.
Sample 1 | Sample 2 | |
n | 40 | 32 |
|
94.2 | 115.2 |
S | 15.9 | 23.0 |
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1. In a random sample of 400 observations from a population whose variance is o?=100, we
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You wish to test the following claim (HaHa) at a significance level of α=0.01 Ho:μ1=μ2 Ha:μ1≠μ2
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Two samples were drawn independently from two normal populations.
Sample 1: 11.6, 11.35, 10.1, 10.85, 10.35, 10.6, and 11.1.Sample 2: 5.85, 8.85, 9.85, 11.85 and 7.85.Test to determine whether the means of the two population differs (use α=0.05).
Chapter 11 Solutions
Fundamentals of Statistics (5th Edition)
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