Compute the standard error for sample means from a population with mean = 100 and standard

Compute the standard error for sample means from a population with mean μ = 100 and standard deviation σ = 25 for sample sizes of n = 30, n = 200, and n = 1000. What effect does increasing the sample size have on the standard error? Using this information about the effect on the standard error, discuss the effect of increasing the sample size on the accuracy of using a sample mean to estimate a population mean.