Suppose that four groups,each consisting of 100 randomly selected individuals,were exposed to four different commercials about Tide detergent.After seeing the commercial,each individual provided ratings on preference for Tide,preference for Proctor and Gamble (the company making Tide),and preference for the commercial itself.Because these three preference variables are correlated,________ should be conducted to determine which commercial is the most effective (produced the highest preferences across the three variables).
A) regression
B) MANOVA
C) n-way ANOVA
D) one-way ANOVA

Question

Quizplus · Accepted Answer

MANOVA (Multivariate Analysis of Variance) should be conducted in this scenario as there are multiple response variables (preference for Tide, preference for Proctor and Gamble, and preference for the commercial) that are correlated. The MANOVA analysis will help in determining whether there are significant differences between the commercials in terms of these three preference variables. A one-way ANOVA would only allow for the analysis of one response variable, and n-way ANOVA is not a statistical analysis method. Regression analysis may also be useful, but MANOVA is more appropriate when analyzing multiple correlated response variables.

Suppose That Four Groups,each Consisting of 100 Randomly Selected Individuals,were