Probability and Statistics for Engineering and the Sciences
9th Edition
ISBN: 9781305251809
Author: Jay L. Devore
Publisher: Cengage Learning
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Textbook Question
Chapter 8.3, Problem 29E
The true average diameter of ball bearings of a certain type is supposed to be .5 in. A one-sample t test will be carried out to see whether this is the case. What conclusion is appropriate in each of the following situations?
- a. n = 13, t = 1.6, α = .05
- b. n = 13. t = −1.6, α = .05
- c. n = 25. t = −2.6, α = .01
- d. n = 25, t = −3.9
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Chapter 8 Solutions
Probability and Statistics for Engineering and the Sciences
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