Error-sample mean and population mean

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A random sample obtained from a population has a mean of =100 and a standard deviation of = 20. The error between the sample mean and the population mean for a sample of n = 16 is 5 points and the error between a sample men and population mean for a sample of n = 100 is 2 points. Explain the difference in the standard error??

Reference no: EM1388447

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