ADM 2304 Lecture Notes - Lecture 15: Complement Factor B, Sport Utility Vehicle, Multiple Comparisons Problem

• School: University of Ottawa
• Department: Administration
• Course: ADM 2304
• Professor: Tony Quon

Document Summary

H0: no effect of factor b (that is average change time independent of vehicle) or !j = Ha: there is an effect due to factor b or !j 0 for some j. If factor b has little effect then we expect the mean of each level to be close to the overall mean and therefore the f statistic below should be small a r x j x. > compare with earlier table that included the interaction. First two rows and the last row are the same but now the. Interaction sum of squares has been included in the error sum of squares. > comparing the means allows us to explore the nature of the differences detected by the f-tests. When there is interaction between the factors in how they affect the response variable, the main interest is comparing the treatment means.