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:

Social Order

The organized pattern of social relationships and social institutions that together compose society, providing predictability and stability to social life.

Preconventional Level

The preconventional level is the initial stage in Kohlberg's theory of moral development, where individuals base their moral decisions on avoiding punishment and seeking rewards.

Long-term Memory

The type of memory responsible for the storage of information over an extended period, ranging from a few days to a lifetime.

Permanent Storage

The long-term retention of information in the memory, which can be recalled after a period of time.