In Studying the Responses to a Multiple-Choice Test Question, the Following

Essay

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.
$$\begin{array} { r | r r r r r } \text { Response } & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } \\\hline \text { Frequency } & 12 & 15 & 16 & 18 & 19\end{array}$$