Elementary Statistics with Student Access Kit
12th Edition
ISBN: 9780321869470
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 11.2, Problem 25BB
Testing Goodness-of-Fit with a Normal Distribution Refer to Data Set 1 in Appendix B for the 40 heights of females.
| Height (cm) | Less than 155.410 | 155.410–162.005 | 162.005–168.601 | Greater than 168.601 |
| Frequency |
- a. Enter the observed frequencies in the table above.
- b. Assuming a normal distribution with
mean and standard deviation given by the sample mean and standard deviation, use the methods of Chapter 6 to find theprobability of a randomly selected height belonging to each class. - c. Using the probabilities found in part (b), find the expected frequency for each category.
- d. Use a 0.01 significance level to test the claim that the heights were randomly selected from a
normally distributed population. Does the goodness-of-fit test suggest that the data are from a normally distributed population?
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Chapter 11 Solutions
Elementary Statistics with Student Access Kit
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