Use a ?² Test to Test the Claim That in the Given

Essay

Use a ?² test to test the claim that in the given contingency table, the row variable and the column variable are independent
-In studying the responses to a multiple-choice test question, the following sample data were obtained. At the 0.05 significance level, test the claim that the responses occur with the same frequency. $$\begin{array} { r | r r r r r } \text { Response } & \mathrm { A } & \mathrm { B } & \mathrm { C } & \mathrm { D } & \mathrm { E } \\\hline \text { Frequency } & 12 & 15 & 16 & 18 & 19\end{array}$$