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The formula to find the sample mean is. Sample Size z2 p 1-p e2 1 z2 p 1-p e2 N N population size. In other words multiply each number by itself.
Out of his 10 employees he took the ages of 4 employees.
Calculate the sample means for each of our samples as well as the mean for all of the sample data. Calculate the mean x of the sample Subtract the mean from each of the numbers x square the difference and find their sum. Place the cursor where you wish to have the standard deviation appear and click the mouse buttonSelect Insert Function f x from the FORMULAS tab. X is the input vector.