We are interested in determining whether the variances of the sales are equal for two small grocery stores. A sample of 16 days of sales at each store indicated the following.

• Store A: Sample size n1=16, s1 (standard deviation of sales) = $130
• Store B: Sample size n2=16, s2 (standard deviation of sales) = $100

Are the variances of the populations (from which these samples came) equal?

Test the hypothesis using alpha, = 0.05. Show all your steps in the calculations. (6 points) Use excel if needed