Exhibit 7-8: a Pet Store Owner Buys Equal Amounts of Supplies

Multiple Choice

Exhibit 7-8: A pet store owner buys equal amounts of supplies for all types of animals.She wonders if the proportions of her customers are equal or are the same.She collected the following data over a period of a week:


$\begin{array}{lccc}&&& \underline { \text { Products for }}\\&\underline { \text { Dogs }} & \underline { \text { Cats }} & \underline { \text { Fish }} & \underline { \text { Birds}} & \underline { \text { Rodents }}\\\text { Customers }&46&48&35&28&28\end{array}$

-Refer to Exhibit 7-8.What are the degrees of freedom for the statistic?

A) 1
B) 2
C) 4
D) 1 and 5