4. For a population with 50 and  8,

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 54 X 62 X 52 X 42 X 48 X 34

b. Find the score (X value) that corresponds to each of the following z-scores. (Again, you should be able to find these values without any formula or serious calculations.)

z 1.00 z 0.75 z 1.50 z 0.50 z 0.25 z 1.50