The bell baking company was interested in evaluating the sales effect of two different colours (the test variable) for the package of one of its cookie products. The firm selected 10 stores with similar monthly sales of cookies and randomly split them into two groups of five stores each. One group of stores was stocked only with red packages, while the other group of stores was stocked only with blue packages. All the stores were monitored for two weeks to make certain that the packages were properly displayed and that no stock-outs occurred. Table below shows the number of packages sold in each store for the two-week period. Help the baking company make decide the right package color. [5 marks]

please include a SPSS output screenshot as well when answering the question.

Sales by Store
Red Package		Blue Package
Store A	6		Store V	16
Store B	8		Store W	18
Store C	10		Store X	20
Store D	12		Store Y	22
Store E	14		Store Z	24