A Researcher Wishes to Test Whether the Proportion of College

question 82

Essay

A researcher wishes to test whether the proportion of college students who smoke is the same at four different
colleges. She randomly selects 100 students from each college and records the number that smoke. The results
are shown below. $$\begin{array} { | r | c c c c | } \hline & \text { College A } & \text { College B } & \text { College C } & \text { College D } \\\hline \text { Smoke } & 17 & 26 & 11 & 34 \\\text { Don't Smoke } & 83 & 74 & 89 & 66 \\\hline\end{array}$$ Use a 0.01 significance level to test the claim that the proportion of students smoking is the same at all four colleges.

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Definitions:

Third Industrial Revolution

The Third Industrial Revolution refers to the period marked by the digital revolution and the use of electronics and information technology to automate production that began in the late 20th century.

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A process of making three-dimensional solid objects from a digital file, typically by laying down many thin layers of a material in succession.

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