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

Question

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

Quizplus · Accepted Answer

The degrees of freedom for this statistic would be (number of categories - 1), which in this case is (5-1) = 4. Therefore, the best choice is option C.

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