# Question: Example 2 described an experiment in which telephone callers to

Example 2 described an experiment in which telephone callers to an airline were put on hold with an advertisement, Muzak, or classical music in the background. Each caller who was chosen was also randomly assigned to a category of a second factor: Whether the message played was five minutes long or ten minutes long. (In each case, it was repeated at the end.) The table shows the data classified by both factors and the results of a two-way ANOVA.

a. State the null hypothesis to which the F test statistic in the Message row refers.

b. Show how to use mean squares to construct the F test statistic for the Message main effect, report its P-value, and interpret.

c. On what assumptions is this analysis based?

a. State the null hypothesis to which the F test statistic in the Message row refers.

b. Show how to use mean squares to construct the F test statistic for the Message main effect, report its P-value, and interpret.

c. On what assumptions is this analysis based?

## Relevant Questions

Refer to the previous exercise. Let x1 = 1 for the advertisement and 0 otherwise, x2 = 1 for Muzak and 0 otherwise, and x1 = x2 = 0 for classical music. Likewise, let x3 = 1 for repeating in 10-minute cycles and x3 = 0 for ...The results in the table are from a study of physical attractiveness and subjective well-being. A panel rated a sample of college students on their physical attractiveness. The table presents the number of dates in the past ...Refer to the previous exercise. a. Find the margin of error for constructing a 95% confidence interval for the difference between any pair of the true means. Interpret by showing which pairs of bumpers (if any) are ...Refer to the previous exercise. Let f = 1 for females and 0 for males, and let r = 1 for blacks and 0 for whites. The regression model for predicting y = ideal number of kids is = 2.42 + 0.04f + 0.37r. a. Interpret the ...For four groups, explain carefully the difference between a confidence level of 0.95 for a single comparison of two means and a confidence level of 0.95 for a multiple comparison of all six pairs of means.Post your question