Author Question: For a sample of n = 100 scores, X = 45 corresponds to z = 0.50 and X = 52 corresponds to z = +1.00 . ... (Read 120 times)

Arii_bell · **on:** Jun 20, 2018

For a sample of n = 100 scores, X = 45 corresponds to z = 0.50 and X = 52 corresponds to z = +1.00 . What are the values for the sample mean and standard deviation?

a. M = 31 and s = 7 c. M = 38 and s = 7
b. M = 31 and s = 14 d. M = 38 and s = 14

Question 2

For a sample of n = 30 scores, X = 45 corresponds to z = 1.50 and X = 40 corresponds to z = +1.00 . What are the values for the sample mean and standard deviation?

a. M = 35 and s = 10 c. M = 35 and s = 15
b. M = 30 and s = 15 d. M = 30 and s = 10