Chapter 13: Q.31 (page 765)
What is the -value?
Short Answer
The -value is .
Chapter 13: Q.31 (page 765)
What is the -value?
The -value is .
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Get started for freeUse the following information to answer the next five exercises. There are five basic assumptions that must be fulfilled in order to perform a one-way ANOVA test. What are they?. Write another assumption.
Suppose a group is interested in determining whether teenagers obtain their driver's licenses at approximately the same average age across the country. Suppose that the following data are randomly collected from five teenagers in each region of the country. The numbers represent the age at which teenagers obtained their driver's licenses,
Enter the data into your calculator or computer.
-value = _______
Two coworkers commute from the same building. They are interested in whether or not there is any variation in the time it takes them to drive to work. They each record their times for commutes. The first worker’s times have a variance of . These coworkers' times have a variance of . The first worker thinks that he is more consistent with his commute times. Test the claim at the % level. Assume that commute times are normally distributed. What is s in this problem?
Are the mean number of times a month a person eats out the same for whites, blacks, Hispanics and Asians? Suppose that Table 13.26 shows the results of a study.
White | Black | Hispanics | Asian |
6 | 4 | 7 | 8 |
8 | 1 | 3 | 3 |
2 | 5 | 5 | 5 |
4 | 2 | 4 | 1 |
6 | 6 | 7 |
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 .
Name one assumption that must be true.
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