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

question 66

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

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Definitions:

Spot Welds

A welding process where metal surfaces are joined by producing a series of individual welds at separate points, commonly used in sheet metal fabrication.

Projection Welds

Welds made by projecting localized heat and pressure onto particular points, typically used to join sheet metal parts at specified spots or studs.

Weld Symbol

A graphical representation on engineering drawings indicating the type of weld to be used.

Plug Weld

A type of weld used to fasten two pieces of metal together by filling a pre-drilled hole in the top piece with weld material which then attaches to the piece underneath.