1. Explain what is measured by the sign of a z-score and what is measured by its numerical value.
2. For a distribution of scores, X = 40 corresponds to a z-score of z = -1.00, and X = 42 corresponds to a z-score of z = -0.50. What are the values for the mean and standard deviation for the distribution? Example sketch a distribution and locate each of the z-score positions