A researcher wanted to know the effects of homework assignments and session length on the learning of the course content. She designed a study in which 28 students were randomly assigned to either a homework (1) or no homework (2) condition as well as either an 8-week session (1) or a 16-week session (2). This resulted in 7 students participating in each of the four conditions. At the end of the sessions, all students took the same final exam. Table 1 summarizes this data. You are to examine the main effects of the two independent variables and the interaction effect of homework and session length. a. Use Minitab to conduct an ANOVA post test and determine under which condition (HW/noHW + 8/16wk) students receive the highest and the lowest score?

b. Summarize your results from part (a).