Conduct the following analysis on the sneakers data given in Internet and Computer Exercises 3 of Chapter 17. Consider only the following variables: evaluations of the sneakers on comfort (V2), style (V3), and durability (V4).
a. Analyze this data using principal components analysis, using the varimax rotation procedure.
b. Interpret the factors extracted.
c. Calculate factor scores for each respondent.
d. If surrogate variables were to be selected, which ones would you select?
e. Examine the model fit.
f. Analyze the data using common factor analysis, and answer questions b through e again.