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(See Steps) In order to compare the average life of two brands of dishwashers, a sample of 40 of each brand is taken. The results are: Brand A: mean = 13

Question: 2. In order to compare the average life of two brands of dishwashers, a sample of 40 of each brand is taken. The results are:

Brand A: mean = 13 standard deviation = 2 Brand B: mean = 14.5 standard deviation = 2.5

Can we conclude at the .05 level that there is a significant difference?

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(See Steps) In order to compare the average life of two brands of dishwashers, a sample of 40 of each brand is taken. The results are: Brand A: mean = 13

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