Reality TV and cosmetic surgery. Refer to the Body Image:

An International Journal of Research (Mar. 2010) study of the impact of reality TV shows on one’s desire to undergo cosmetic surgery, Exercise 12.25

(p. 700). Recall that psychologists used multiple regression to model desire to have cosmetic surgery (y) as a function of gender (x1), self-esteem

(x2), body satisfaction (x3), and impression of reality TV

(x4). The SAS printout below shows a confidence interval for E(y) for each of the first five students in the study.

a. Interpret the confidence interval for E(y) for student 1.

b. Interpret the confidence interval for E(y) for student 4.

Transcribed Image Text:

SAS Output for Exercise 12.35 Dependent Variable: DESIRE Output Statistics Dependent Predicted Std Error IMPREAL Variable Value Mean Predict 95% CL Mean 33481 4 11.0000 13.8655 0.2235 13.4243 14.3067 4 13.0000 14.0573 0.2519 13.5598 14.5547 5 11.0000 13.9883 0.2899 13.4159 14.5607 4 11.0000 9.8409 0.5318 8.7908 10.8910 6 18.0000 16.2634 0.5472 15.1830 17.3438 Obs GENDER SELFESTM BODYSAT -2345 0 20 25 22 8 JON 24