I am having a hard time with the sum of squares concept. If I learn one section, I mess up on another part.

My Notes 28 -/16 points PriviteraStats3 14.E.025. In an effort to promote a new product, a marketing firm asks participants to rate the effectiveness of ads that va long) and by type of technology (static, dynamic, interactive). Higher ratings indicated greater effectiveness. Source of Variation SS df MS Length 5 Technology Length x Technology 152 Error 570 114 Total 837 (a) Complete the F-table and make a decision to retain or reject the null hypothesis for each hypothesis experimentwise alpha equal to 0.05.) Source of Variation SS df MS F Length 5 Technology Length x Technology 152 Error 570 114 Total 837 State the decision for the main effect of length. O Retain the null hypothesis. O Reject the null hypothesis. State the decision for the main effect of technology. O Retain the null hypothesis. O Reject the null hypothesis. State the decision for the interaction effect. Retain the null hypothesis. O Reject the null hypothesis. (b) Based on the results you obtained, what is the next step? Compute simp