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Mathematics 7 Online
OpenStudy (anonymous):

the average price of a sample of 12 bottles of diet salad dressing take from a different store is $1.43 with the standard deviation is $0.09. the average price of a sample of 16 low calorie frozen desserts is $1.03 with the standard deviation is $0.10. find the 99% confidence interval of the different in the means?

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