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Independence Tests
13. Chi-Square Tests & Goodness of Fit / Independence Tests / Problem 9
Problem 9

A survey of 200200 college students recorded their preferred study location (Library, Dorm, Coffee Shop) and whether they were undergraduate or graduate students. At α=0.05\alpha=0.05, can you conclude that student status and preferred study location are related?
LibraryDormCoffee ShopUndergraduate406030Graduate501010\begin{array}{cccc} & \text{Library} & \text{Dorm} & \text{Coffee Shop}\\ \text{Undergraduate} & 40 & 60 & 30\\ \text{Graduate} & 50 & 10 & 10\end{array}