A small company that specializes in gourmet cookies decides to redesign its packaging. The company owner is certain that the new package will lead to increased sales. Weekly sales at a random sample of stores in the Barrie area are recorded before and after the change in package design. Using the 5% level of significance, analyze the data to see if the owner's idea is correct. The data set is shown in Exhibit 9.37.

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Weekly Sales Before and After Product Redesign Sales After 942.00 698.71 646.10 976.97 676.44 793.19 607.15 785.15 858.87 636.04 Sales Before 813.67 831.54 734.48 832.46 791.22 766.73 668.66 631.05 724.39 766.76 Store 51 Bayfield 137 Wellington 6 Collie 421 Essa Road 19 Queen 345 Cundles D-564 Byrne Drive 24 Archer 15 Short St