7. (17 Marks) A random-digit telephone dialing procedure was employed to collect data on 575 study participants. The researcher classified each participant into one of four education categories (college graduate, some college, high school graduate, and high school dropout) as well as two categories of insomnia status (normal sleeper or chronic insomnia). One dependent variable of interest to the researchers was a quantity measure of daytime functioning called the Fatigue Severity Scale (FSS). The data were analyzed using an ANOVA model a. What are the factors, and what is the response in the model for analyzing this data. (3 Marks) b. Write the model underlying the analysis. (2 Marks) c. List the treatments for this study. (3 Marks) d. The researcher reported that "the Insomnia x Education interaction was not statistically signif icant" . Interpret this result in context. Illustrate with a graph. (4 Marks) e. The researchers discovered that the mean FSS was significantly greater for normal sleepers than for people with chronic insomnia. Interpret this result in context. (3 Marks) f. The researcher reported that the main effect of Education was statistically significant. Interpret this result in context. (2 Marks)