Data from a survey of 500 randomly selected employee found a mean age of 56.98 years and the standard deviation was 7.83 years. What is the standard error of the mean?
solution
standard error of the mean is
SE =
/
n= 7.83/
500=0.3502
SE=0.3502
Data from a survey of 500 randomly selected employee found a mean age of 56.98 years...
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