Probability and Statistics for Engineering and the Sciences
9th Edition
ISBN: 9781305251809
Author: Jay L. Devore
Publisher: Cengage Learning
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Chapter 10.3, Problem 22E
The following data refers to yield of tomatoes (kg/plot) for four different levels of salinity. Salinity level here refers to electrical conductivity (EC), where the chosen levels were EC = 1.6, 3.8, 6.0, and 10.2 nmhos/cm.
| 1.6: | 59.5 | 53.3 | 56.8 | 63.1 | 58.7 |
| 3.8: | 55.2 | 59.1 | 52.8 | 54.5 | |
| 6.0: | 51.7 | 48.8 | 53.9 | 49.0 | |
| 10.2: | 44.6 | 48.5 | 41.0 | 47.3 | 46.1 |
Use the F test at level α = .05 to test for any differences in true average yield due to the different salinity levels.
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Chapter 10 Solutions
Probability and Statistics for Engineering and the Sciences
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