I want to make sure I did these calculations correctly, One hundred people are included in a study in which they are compared to a known population that has a mean of 73, a standard deviation of 20, and a rectangular distribution.   μM = ___73_____. σM = ___ 2 _____. The shape of the comparison distribution is ___approximately normal_______. If the sample mean is 75, the lower limit for the 99% confidence interval is __69.84____. If the sample mean is 75, the upper limit for the 99% confidence interval is ___80.16___. If the sample mean is 75, the lower limit for the 95% confidence interval is ____71.08___. If the sample mean is 75, the upper limit for the 95% confidence interval is ____78.92___.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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I want to make sure I did these calculations correctly,

  1. One hundred people are included in a study in which they are compared to a known population that has a mean of 73, a standard deviation of 20, and a rectangular distribution.

 

  1. μM = ___73_____.
  2. σM = ___ 2 _____.
  3. The shape of the comparison distribution is ___approximately normal_______.
  4. If the sample mean is 75, the lower limit for the 99% confidence interval is __69.84____.
  5. If the sample mean is 75, the upper limit for the 99% confidence interval is ___80.16___.
  6. If the sample mean is 75, the lower limit for the 95% confidence interval is ____71.08___.
  7. If the sample mean is 75, the upper limit for the 95% confidence interval is ____78.92___.

 

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