Chapter 13: Q.3 (page 764)
There are five basic assumptions that must be fulfilled in order to perform a one-way ANOVA test. What are they?
Write a third assumption
The third assumption for one-way ANOVA is that the populations are assumed to have equal standard deviations (or variances).
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What is the -value?
Use 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.
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. Is the claim accurate?
What is ?
Are the means for the final exams the same for all statistics class delivery types? Table 13.25 shows the scores on final exams from several randomly selected classes that used the different delivery types
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 .
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