A Researcher Wishes to Determine Whether Physical Exercise Is Effective $\alpha = 0.02$

question 20

Essay

A researcher wishes to determine whether physical exercise is effective in helping people to lose weight. 20 people were randomly selected to participate in an exercise program for 30 days. Use the Wilcoxon signed rank test to test the claim that exercise has an effect on weight. Use $\alpha = 0.02$
$$\begin{array} { l l l l l l l } \hline{ \text { Weight Before Program } } & & & & & \\\text { (in Pounds) } & 178&210&156&188&193&225&190&165&168 & 200 \\\hline \begin{array} { l } \text { Weight After Program } \\\text { (in Pounds) }\end{array} & 182&205&156&190&183&220&195&155&165 & 200 \\\hline\\\hline{ \text { Weight Before Program } } & & & & & \\\text { (in Pounds) } &186&172&166&184&225&145&208&214&148& 174\\\hline\text { Weight After Program } \\\text { (in Pounds) } &180&173&165&186&240&138&203&203&142&170\\\hline \end{array}$$

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Definitions:

Consolidated Balance Sheet

A comprehensive financial statement presenting the total assets, liabilities, and shareholder equity of a parent company and its subsidiaries as a single entity.

Common Shares

Equity securities that represent ownership in a corporation, granting voting rights and a share in the company's profits through dividends.

Equity Method

An accounting technique used for recording investments in which the investor has significant influence over the investee, but not full control.

Straight Line Amortization

A method of allocation of an asset's cost over its useful life in equal annual amounts.