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13. Chi-Square Tests & Goodness of Fit
13. Chi-Square Tests & Goodness of Fit / Independence Tests / Problem 14
Problem 14

Researchers collected data on the number of male and female patients admitted to a hospital during 33 different shifts (Morning, Afternoon, Night). At α=0.01\alpha=0.01, can you conclude that gender and shift are related?
MorningAfternoonNightMale302515Female203525\begin{array}{cccc} & \text{Morning} & \text{Afternoon} & \text{Night}\\ \text{Male} & 30 & 25 & 15\\ \text{Female} & 20 & 35 & 25\end{array}