Saeko owns a yarn shop and want to expands her color selection.
Before she expands her colors, she wants to find out if her customers prefer one brand
over another brand. Specifically, she is interested in three different types of bison yarn.
As an experiment, she randomly selected 21 different days and recorded the sales of each brand.
At the .10 significance level, can she conclude that there is a difference in preference between the brands?
	Misa's Bison	Yak-et-ty-Yaks	Buffalo Yarns
	799	776	799
	784	640	931
	873	822	794
	702	812	920
	795	673	731
	875	893	837
Total	4,828.00	4,616.00	5,012.00
What is the null hypothesis?
What is the alternative hypothesis?
What is the level of significance?