To find out the cell that contribute most to the chi-square statistic is what.
Answer to Problem AP4.18CPT
Option (c) is the correct option.
Explanation of Solution
In the question, a study was conducted to find out could the mud wrestling be the cause of a rash contracted by University of Washington students. Thus, we have to first find out the difference between the observed and the expected frequency as:
Men who developed rash:
Men who developed no rash:
Women who developed rash:
Women who developed no rash:
Thus, we note that all four cells have an equal difference, then the cell that contributed the most is the cell that has the lowest expected value. The lowest expected value is
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