Student Solutions Manual for Devore's Probability and Statistics for Engineering and the Sciences, 9th
9th Edition
ISBN: 9798214004020
Author: Jay L. Devore
Publisher: Cengage Learning US
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Textbook Question
Chapter 8, Problem 59SE
It is specified that a certain type of iron should contain .85 g of silicon per 100 g of iron (.85%). The silicon content of each of 25 randomly selected iron specimens was determined, and the accompanying Minitab output resulted from a test of the appropriate hypotheses.
| Variable | N | Mean | StDev | SE Mean | T | P |
| sil cont | 25 | 0.8880 | 0.1807 | 0.0361 | 1.05 | 0.30 |
- a. What hypotheses were tested?
- b. What conclusion would be reached for a significance level of .05, and why? Answer the same question for a significance level of .10.
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Chapter 8 Solutions
Student Solutions Manual for Devore's Probability and Statistics for Engineering and the Sciences, 9th
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