A Psychologist Claims That People Who Exercise Regularly Are More

question 54

Essay

A psychologist claims that people who exercise regularly are more content with their body image. A random sample of 102 people was taken, where they were asked if they regularly exercise and if they were content with their body image. $$\begin{array} { | l | l | l | } \hline & \text { Not content } & \text { Content } \\\hline \text { Exercised regularly } & 20 & 30 \\\hline \begin{array} { l } \text { Did not exercise } \\\text { regularly }\end{array} & 28 & 24 \\\hline\end{array}$$ Is there significant evidence to support this claim? Test at the 1% significance level.

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Definitions:

Industry Expands

The process of growth within a particular sector or industry, marked by increased production, innovation, and possibly the entrance of new firms.

Economic Profits

The difference between a firm's total revenues and its total costs, including both explicit and implicit costs, representing the excess return over the firm's opportunity costs.

Purely Competitive Firm

A business that operates in a market with many buyers and sellers, where each has a negligible impact on price and product homogeneity prevails.

Unimpeded Entry

A situation in a market where there are no obstacles preventing new competitors from entering and competing.