PLEASE USE EXCEL TO SOLVE Brand ABrand B1616.pdf

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PLEASE USE EXCEL TO SOLVE Brand A Brand B 16 16 14 20 17 18 19 15 19 19 20 21 12 21 16 18 19 20 14 19 15 15 13 13 13 16 15 15 15 19 12 17 15 18 16 16 17 16 16 20 16 12 16 19 19 16 16 15 16 20 16 18 21 14 18 17 21 18 15 17 20 18 13 16 18 18 18 14 21 15 16 20 16 23 18 15 16 16 18 17 17. FILE Refrigerator_Longevity. A consumer advocate researches the length of life between two brands of refrigerators, Brand A and Brand B. He collects data (measured in years) on the longevity of 40 refrigerators for Brand A and repeats the sampling for Brand B. a. Specify the competing hypotheses to test whether the average length of life differs between the two brands. b. Calculate the value of the test statistic and the p-value. Assume that A2=4.4 and B2=5.2. c. At the 5% significance level, what is the conclusion?.

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