Question 3: Examining sample variability using samples of n = 160. Part 1: Record the characteristics of the Sampling Distribution of Samples of n = 160 Shape = Mean = Standard Error = Formula for standard error = Pop SD / SORT (n) Sample 1: Sample Mean, SE & Z score Sample 2: Sample Mean, SE & Z score for a sample of n = 160 for a sample of n = 160 Sample S.E. Z score Sample S.E. Z score Mean Mean 17.08 16.77 Sample 3: Sample Mean, SE & Z score Sample 4: Sample Mean, SE & Z score for a sample of n = 160 for a sample of n = 160 Sample S.E. Z score Sample S.E. Z score Mean Mean 16.40 16.15 Record (mark) the Z values for the sample means on the graphic below. You can place a "x" either on or under the graphic to mark the location of each sample mean. -3 -2 -1 2 3