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Formulate the null and alternative hypothesis

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A diet doctor claims that the average North American is more than 20 pounds over-weight. To test his claim, a simple random sample of 20 North Americans was weighted, and the difference between their actual weight and their ideal weight was calculated. The data are listed here. Assume the population is normally distributed.

Formulate the null and alternative hypothesis, and test at the 5% significance level.

16 23 18 41 22 18 23 19 22 15

18 35 16 15 17 19 23 15 16 26

Reference no: EM132515248

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