Applied Data Analysis: ANOVA on anorexia The next data to analyze is a data set on anorexia and is from the source quoted belowl. There is an "anorexia.csv" in the directory Supplementary Materials under the Content tab. If however, you have installed R on your computer, it is available by first typing: > librarylMASS) > anorexia Anorexia is an eating disorder and the data consists of three treatments for it: a control (Cont), cognitive behavioral treatment (CBT), and family treatment (FT). The response measured are the patients weight prior to treatment (Prewt) and patients weight after the treatment (Postwt). Our interest is in difference in weight (Postwt Prewt) after each treatment across the three treatments. Use ANOVA to test the null hypothesis that all treatments are the same. You can perform the data analysis either by using a scientific calculator, using spreadsheet features, or, you can do this completely in R (some guidance will be provided on this weeks Discussion). 1. Hand, D. J., Daly, F., McConway, K., Lunn, D. and Ostrowski, E. eds (1993)A Handbook of Small Data Sets. Chapman & Hall, Data set 285 (p. 229) Question 10 (1 point) Perform ANOVA on the anorexia data set and choose all the correct answers. C] reject H0 at or = 0.05 C] reject H0 at or = 0.025 C] not reject H0 at a = 0.05 C] not reject H0 at or = 0.025 C] reject H0 at or = 0.01 C] not reject H0 at a = 0.01 Question 11 (1 point) At Oi = 0.05 the significant differences are the following. Choose all the correct answers. Q Cont vs CBT C] There are no differences C] Cont vs FT C] CBT vs FT