23.38 Sorry, no chi-square. Here is more information about Internet use by stude

Question

23.38 Sorry, no chi-square. Here is more information about Internet use by students at Penn State, based on a random sample of 1852 undergraduates. Explain why it is not correct to use a chi-square test on this table to compare the University Park and commonwealth campuses. Note that in order to use the chi-square test in a two-way table, each indi- vidual must fall into one cell of the table. University Park Commonwealth Internet use Viewed a video on YouTube or similar site Legally purchased music or videos online Downloaded a podcast Participated in Internet gambling 875 700 514 348 235 145 114 93

Explanation / Answer

Each respondent could have participated in more than one. For example, some people in category "viewed a video on You Tube or similar site" also fall in category "Legally purchased music or videos online". That's why it is not correct to use a chi-square test on this table.

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