1. For the population with µ = 100 and σ = 10
A) Find the z- score for each of the following X values: X = 105 X = 120 X = 130 X = 90 X = 85 X = 60.
B) Find the score ( X value) that corresponds to each of the following z scores:
z = -1.00 z = -0.50 z = 2.00 z =0.70 z = 1.50 z = -1.50
2. for a population with mean of M=85 a score of x=90 corresponds to z= 0.50
What is the sample standard deviation?
3. In a population of exam scores a score of X=88 corresponds to z=+2.00 and a score of X=79 and corresponds to z=-1.00. find the mean and standard deviation for the population. Sketch the distribution and locate two scores on the sketch