If you select a random sample of n 44 scores from a populat

If you select a random sample of n = 44 scores from a population with ? = 70 and ? = 13, how much error would you expect, on average, between the sample mean and the population mean?

Solution

standard error of mean = standard deviation / sqrt(size of sample)

= s/sqrt(n)

= 13/sqrt(44)

= (13*sqrt(11))/22 or 1.9598