Assume that the length of a movie is not affected by an interaction between its star rating and CTR rating. Find the test statistic and critical value for the null hypothesis that CTR rating has no effect on movie length. What do you conclude?
In Exercises 5 and 6, use only the first value from each of the eight cells in the table used for Exercises 1-4. When we use only these first values, the Excel display includes the following.

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12 ANOVA 13 Source of Vanation 14 Rows 15 Columns 16 Error 17 1 Total SS cl VS RvaieFeit 0 459 799 1 10.12796 153 0.574468 0 669941 9 276619 3 3) 3 266 3333