PH1700 Homework 5 Instructions. For all homework problems, when performing any statistical test, please state the hypotheses, and report the test statistic, and report the p-value (or critical value, if requested) as part of performing and interpreting test. Problems from Rosner 8th edition (with additions): 8.81. This problem uses the tennis data from Rosner, described in 8.81 and the pre-amble, and focuses on answering the research question: "Is there a difference in degree of pain during maximal activity while on Motrin compared to placebo?". The comments and question parts below walk you through the steps and analyses to find the answer. Comments: This is a cross-over design with a washout period. That means that all individuals are given both the placebo and the treatment; separated by time. In this data set, some individuals were given the placebo first, and then the treatment (motrin) and others were given motrin first then placebo. Part of this problem is the coding required to organize the data. Consider the following 1) Need to organize the data so you are comparing motrin to placebo the same way across all individuals. For example if you need to take a difference, make sure the difference is the same direction (motrin - placebo), for example. 2) Need to perform data cleaning (look for missing value codes and correct to Stata missing value if needed). 3) The data dictionary defines variables in terms of a "study period". This is either period 2 (first course o