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Background: Several studies in the 1990's investigated the effectiveness of using non-steroidal anti- inflammatory drugs in the treatment of familial andenomatous polyposis (FAP). The data set provided below contains the number of colonic polyps after 12 months for the placebo and treatment groups. study Source: F. M. Giardiello, S. R. Hamilton, A. J. Krush, S. Piantadosi, L. M. Hylind, P. Celano, S. V. Booker, C. R. Robinson and G. J. A. Offerhaus (1993), Treatment of colonic and rectal adenomas with sulindac in familial adenomatous polyposis. New England Journal of Medicine, 328(18), 1313-1316. Directions: Perfrom an appropriate significance test to determine whether or not the average number of polys in the treatment group (Group 2) is less than the average number of polyps in the placebo group (Group 1). 1. When the analysis was performed, the test statistic is t=3.453, and the p-value is 0.004 a. State the null and alternative hypothesis. O Ho: M1 = /2 Ha: H1 # #2 O Ho: H1 2 2 Ha: H1 /2 b. Interpret the results of the test. The p-value provides strong evidence against the null hypothesis. The reduction in the number of polyps is statistically significant. O The p-value provides little evidence against the null hypothesis. The reduction in the number of polyps is not statistically significant