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A diet doctor claims that the average North American is more than 20 pounds overweight. To...

A diet doctor claims that the average North American is more than 20 pounds overweight. To test his claim, a random sample of 20 North Americans was weighed, and the difference between their actual and ideal weights was calculated.

The data is listed below:

16 23 18 41 22 18 23 19 22 15

18 35 16 15 17 19 23 15 16 26

The sample statistics are: ?̅= 20.85, ? = 6.76.

Can we infer, at the 5% significance level, that the doctor’s claim is true?

Assume the required conditions are satisfied

H0 : _______________________

H1 : _______________________

Conclusion: Reject H0 Accept H0

Math   Statistics-And-Probability   
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Answer: ---- Date: ---7/7/2019

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