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Chapter 13: Q.5 (page 764)
There are five basic assumptions that must be fulfilled in order to perform a one-way ANOVA test.
Write the final assumption.
The fifth or final assumption for one-way
ANOVA is that the 'The response is a numerical variable'.
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Are the mean numbers of daily visitors to a ski resort the same for the three types of snow conditions? Suppose that Table 13.27 shows the results of a study.
Assume that all distributions are normal, the four population standard deviations are approximately the same, and the data were collected independently and randomly. Use a level of significance of .
There are five basic assumptions that must be fulfilled in order to perform a one-way ANOVA test.
State the alternative hypothesis for a one-way ANOVA test if there are three groups .
Four sports teams took a random sample of players regarding their GPAs for the last year. The results are shown in Table 13.8
| Basketball | Baseball | Hockey | Lacrosse |
| 3.6 | 2.1 | 4.0 | 2.0 |
| 2.9 | 2.6 | 2.0 | 3.6 |
| 2.5 | 3.9 | 2.6 | 3.9 |
| 3.3 | 3.1 | 3.2 | 2.7 |
| 3.8 | 3.4 | 3.2 | 2.5 |
Use a significance level of , and determine if there is a difference in GPA among the teams .
What is the -value?
Use the following information to answer the next two exercises. There are two assumptions that must be true in order to perform an test of two variances.
What is the other assumption that must be true?
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