Question: Determine (a) the x2 test statistic, (b) the degrees of freedom, (c) the critical value using a = 0.05, and (d) test the hypothesis at

Determine (a) the x2 test statistic, (b) the degrees of freedom, (c) the critical value using a = 0.05, and (d) test the hypothesis at the a = 0.05 level of significance.

H0: pA = pB = pC = pD = 1/4

H1: At least one of the proportions is different from the others.

Outcome B D A Observed 30 20 28 22 Expected 25 25 25 25

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