Question: solve only by hand ,show all steps 2-A consumer products company relies on direct mail marketing pieces as a major component of its advertising campaigns.

solve only by hand ,show all steps 2-A consumersolve only by hand ,show all steps
2-A consumer products company relies on direct mail marketing pieces as a major component of its advertising campaigns. The company has three different designs for a new brochure and want to evaluate their effectiveness, as there are substantial differences in costs between the three designs. The company decides to test the three designs by mailing 5,000 samples of each to potential customers in four different regions of the country. Since there are known regional differences in the customer base, regions are considered as blocks. The number of responses to each mailing is shown below. Region Design NE NW SE SW 1 250 350 219 375 2 400 525 390 580 3 275 340 200 310 (a) Analyze the data from this experiment. (b) Analyze the residuals from this experiment

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