Test the following hypotheses by using the χ2 goodness of fit test.
H0: pA = .40, pB = .40, and pC = .20
Ha: The population proportions are not
pA = .40, pB = .40, and pC = .20
A sample of size 200 yielded 60 in category A, 120 in category B, and 20 in category C. Use α = .01 and test to see whether the proportions are as stated in H0.
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