6. For a population with a mean of u = 100 and a standard deviation of o = 20, a. Find the z-score for each of the following X values. Write the formula for EACH computation! X = 108 X = 115 X = 130 X =90 X = 88 X =95 b. Find the score (X value) that corresponds to each of the following z-scores. Write the formula for EACH computation! Z= 0.40 Z= =0.50 Z= 1.80 z = 0.75 Z = 1.50 Z =-1.25 8. A sample has a mean of M - 30 and a standard deviation of s = 8. Find the z-score for each of the following X values from this sample. Write the formula for EACH computation! X =32 X = 34 X = 36 X =28 X =20 X = 18