Reality TV and cosmetic surgery. Refer to the Body Image: An International Journal of Research (March 2010) study of the impact of reality TV shows on a college student’s decision to undergo cosmetic surgery, Exercise 12.43 (p. 743). The data saved in the file were used to fit the interaction model, E1y2 = b0 + b1x1 + b2x4 + b3x1x4, where y = desire to have cosmetic surgery (25-point scale), x1 = {1 if male, 0 if female}, and x4 = impression of reality TV (7-point scale). From the StatCrunch printout (p. 743), the estimated equation is: yn = 11.78 - 1.97x1 + .58x4 - .55x1x4

a. Give an estimate of the change in desire 1y2 for every 1-point increase in impression of reality TV show 1x42 for female students.

b. Repeat part a for male students.