Statistical Reasoning for Everyday Life - MyStatLab
5th Edition
ISBN: 9781323823781
Author: Bennett
Publisher: PEARSON
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Textbook Question
Chapter 10.3, Problem 12E
Fabric Flammability Tests in Different Laboratories. The Vertical Semirestrained Test was used to conduct flammability tests on children’s sleepwear. Pieces of fabric were burned under controlled conditions. After the burning stopped, the length of the charred portion was measured and recorded. The same fabric samples were tested at five different laboratories. The analysis of variance results are shown in Figure 10.4.
- a. What is the null hypothesis?
- b. What is the alternative hypothesis?
- c. Identify the P-value.
- d. Is there sufficient evidence to support the claim that the means for the different laboratories are not all the same? Assume that a 0.05 significance level is used.
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Chapter 10 Solutions
Statistical Reasoning for Everyday Life - MyStatLab
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