48. Is someone who switches brands because of a nancial inducement less likely to remain loyal than someone who switches without inducement? Let p1 and p2 denote the true proportions of switchers to a certain brand with and without inducement, respectively, who subsequently make a repeat purchase.

Test H0: p1  p2  0 versus Ha: p1  p2  0 using a  .01 and the following data:

(Similar data is given in Impact of Deals and Deal Retraction on Brand Switching, J. Marketing, 1980: 62—70.)