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Saeko owns a yarn shop and wants to expand s her color selection. Before she expands her colors, she wants to find out if her
Saeko owns a yarn shop and wants to expand \s 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?