solve the case study according to the formula given at the end
see the attached file for the case and the formula in the same file
A diet doctor claims that the average North American is more than 20 pounds overweight. To test his claim, a random sample of 10 pounds overweight American was weighted. And the difference between their actual and ideal weight was
calculated. The data are listed here.
1- Do these data allow us to infer at the 5% that the doctor’s claim is true?