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 is the appropriate statistic for this question?
A) Chi Square Test of Independence
B) Chi Square Goodness of Fit
C) Analysis of Variance
D) None of these are true.

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 is the appropriate statistic for this question?
A) Chi Square Test of Independence
B) Chi Square Goodness of Fit
C) Analysis of Variance
D) None of these are true.

Quizplus · Accepted Answer

Chi Square Goodness of Fit is the appropriate statistic because it tests whether the observed distribution of customers across different animal types is significantly different from the expected distribution assuming all animal types have equal proportions of customers.

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