1. Find the X value corresponding to z = 0.25 for each of the following distributions.
a. µ = 40 and s =4
b. µ = 40 and s = 8 c. µ =40 and s =16 d. µ = 40 and s =32
2. A score that is 6 points below the mean corresponds to a z-score of z =22.00. What is the population standard deviation?