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The international bottled water association says that

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The International Bottled Water Association says that Americans on the average drink 4.6 (8-oz.) servings of water a day. Assume that the number of 8-oz. servings of water is approximately normally distributed with a standard deviation of 1.3 servings.

What proportion drink more than 8oz?

What proportion drink less than 8oz?

Reference no: EM13610192

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