A consumer organization wants to know whether there is a difference in the price of a particular toy at three different types of stores.The price of the toy was checked in a sample of five discount stores, five variety stores, and five department stores. The results are shown below. Use the .05 significance level.
Discount Variety Department
$12 $15 $19
13 17 17
14 14 16
12 18 20
15 17 19