Suppose that we will take a random sample of sizenfrom a population having meanand standard deviation. For each of the following situations, find the mean, variance, and standard deviation of the sampling distribution of the sample mean

(a)= 16,= 2,n= 36(Round your answers of" " and " ²" to 4 decimal places.)

(b)= 550,= .3,n= 155(Round your answers of"

" and " ²" to 4 decimal places.)

(c)= 5,= .2,n= 7(Round your answers of" " and " ²" to 4 decimal places.)

(d)= 81,= 3,n= 1,831(Round your answers of" " and " ²" to 4 decimal places.)