Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is d = 0. Compute the value of the t test statistic. Round intermediate calculations to four decimal places as needed and final answers to three decimal places as needed. Subject A B C D E F Before 168 180 157 132 202 124 After 162 178 145 GHI 190 210 171 125 171 126 180 195 163

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