Question: need help with a through d please Determine (a) the y' test statistic, (b) the degrees of freedom, (c) the critical value using a =

need help with a through d please

Determine (a) the y' 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. Outcome Observed Expected 40 Ho: PA = PB = PC = PD = H1: At least one of the proportions is different from the others. (a) The test statistic is 20.89 (Type an exact answer.)

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