A personal fitness company produces both a deluxe and a standard model of a smoothie blender for home use. Selling prices obtained from a sample of retail outlets follow. Use of Excel required and copy screenshots necessary to your answer sheet.

a. The manufacturer's suggested retail prices for the two models show a $10 price differential. Use a .05 level of significance and test that the mean difference between the prices of the two models is $10.

b. What is the 95% confidence interval for the difference between the mean prices of the two models?

Please use excel

Retail Outlet	Deluxe	Standard
1	39	27
2	39	28
3	45	35
4	38	30
5	40	30
6	39	34
7	35	29