Vending Machines on a College Campus Offer a Variety of Snacks

Multiple Choice

Vending machines on a college campus offer a variety of snacks. The purchasing agent believes that each type of snack is equally preferred by students and consequently
Orders equal quantities. The number of snacks sold from vending machines on this
Campus for the last six months is shown in the following table. The appropriate test to
See if the purchasing agent is correct is the $$\begin{array} { | c | c | c | c | c | } \hline \text { Snack Type } & \text { Chips } & \text { Candy Bars } & \text { Crackers } & \text { Nuts } \\\hline \text { Purchase Frequency } & 159 & 198 & 174 & 149 \\\hline\end{array}$$

A) Chi-square test of independence.
B) Z-test for two proportions.
C) Chi-square goodness-of-fit test.
D) Chi-square test of homogeneity.
E) Normality test.