Choose the One Alternative That Best Completes the Statement or Answers

question 56

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-A pharmaceutical company wishes to test a new drug with the expectation of weight reduction. Ten subjects are randomly selected and their weights are recorded. The subjects were placed on the drug for a period of 6 months, after which their weights were recorded again. The results are listed below. (All units are pounds.) Use the Wilcoxon signed-ranks test to find the test statistic T to test the company's hypothesis that the drug reduces weight. Use $\alpha = 0.05$ .
$\begin{array}{lcccccccccc}\hline \text { Subject } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\\hline \text { Before } & 253 & 254 & 255 & 201 & 258 & 170 & 241 & 266 & 270 & 248 \\\text { After } & 238 & 249 & 263 & 191 & 253 & 170 & 211 & 248 & 268 & 233\end{array}$

• A) 4
• B) 7.5
• C) 41
• D) \(5.5\)

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