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