Consider that measurement 2 (M2) in a random sampleof 1000 controls from the Disease Y study population follows the normal distribution. The sample meanof M2 is 90 and 95% of the sample observation falls within 70 and 110. Calculate the sample standard deviationand standard errorof the sample mean and intepret.
I would really appreciate some ideas of how to go about calculate sd and se from such a statement.
For this question, I believe that you need to use the empirical rule to determine the standard deviation. The empirical states the following for a normal distribution:
– 68% of the area of the curve will be …
This solution helps with a normal distribution problem.