Chapter 5, Problem 4P

For a population with μ= 40 and α = 8:

1. a. Find the z-score for each of the following X values.

{Note: You should be able to find these values us­ing the definition of a z-score You should not need to use a formula or do any serious calculations.)

X =44    X = 4H    X = 56

X = 38    X = 34    X = 32

1. b. Find the score (X value) that corresponds to each of the following z-scores. (Again, you should not need a formula or any serious calculations.)

z = 1.00    z = 0.25    z = 1.50

z= -0.50    z = -1.25    z = -2.50