2. [6 points] Perform a direct comparison of the difference between the beer and water treatments in changes =after drink- before drink. This analysis is not required to use the same methodology as questions 1. a. [1 point] Identify your preferred methods for hypothesis testing, and briefly explain why you have chosen them. If using a t-test, be specific about the method that you plan to use (exact, Welch's, or paired). 2 This study source was downloaded by 100000851915831 from CourseHero.com on 04-05-2023 14:06:34 GMT -05:00 https://www.coursehero.com/file/177315431/stat503-Fall2022-hw6-1docx/ STAT 503-Statistical Methods for Biologists Modified: 2022-11-09 b. [1 point] Explain how hypothesis testing will proceed if the data fail to meet the requirements for the method in 2a. c. [4 points] Perform the analysis using =0.05 i. [1 point, 0.5 each] State your null and alternative hypotheses. ii. [1 point] Assume that the normality assumption has been met. What else assumptions that you need to check before you implement the method you choose: List the assumptions for your analysis and present the results of your check.