A Research Company Frequently Monitors Trends in the Use of Social

question 31

Essay

A research company frequently monitors trends in the use of social media by American Adults. The results of one survey of 1846 randomly selected adults looked at social media use versus age group. The table summarizes the survey results.
$\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { Age Group }$
$\text { Uses Social Media }\begin{array}{|l|c|c|c|c|r|}\hline & 18-29 & 30-49 & 50-64 & 65+ & \text { Total } \\\hline \text { Yes } & 328 & 417 & 288 & 114 & \mathbf{1 1 4 7} \\\hline \text { No } & 67 & 125 & 265 & 242 & \mathbf{6 9 9} \\\hline \text { Total } & \mathbf{3 9 5} & \mathbf{5 4 2} & \mathbf{5 5 3} & \mathbf{3 5 6} & \mathbf{1 8 4 6} \\\hline\end{array}$
-Do you think social media use is independent of age? Give statistical evidence to support your conclusion.

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Definitions:

Sexually Transmitted Infection

An infection transmitted through sexual contact, caused by bacteria, viruses, or parasites.

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A bacterial infection usually spread by sexual contact that starts as a painless sore and can eventually affect the heart, brain, and other organs if untreated.

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