Men and women were asked which type of animal they thought made the best pets. Data are in the table below.
Reptiles
Mammals
Birds
Men
24
35
20
Women
15
47
12
If the expected frequencies rule for chi-square had been violated by the data, which categories could be combined together in a meaningful way to increase the expected frequencies?
A. It depends on the research hypothesis.
B. Reptiles, mammals and neither
C. Men and women
D. Reptiles and mammals
Answer: A
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