If a population of raw scores is normally distributed and has a mean μ = 80 and a standard deviation σ = 10, determine the parameters (μX and σX) of the sampling distribution of the mean for the following sample sizes.
(a) N = 13
μX =
σX =
(b) N = 32
μX =
σX =
(c) N = 51
μX =
σX =