Psy 231 Lab Assignment 8 1. What two things does a z-score tell us about the relative standing of a particular raw score? 2. For a particular group of scores, = 20 and = 5. Give the corresponding z-score M SD for a) x = 30, b) x = 15, c) x = 20, and d) x = 22.5. Please show your work. 3. Write the formula for changing a z-score to a raw score, and define each of the symbols. 4. For a particular group of scores, = 10 and = 2. Give the raw score for M SD a) z = +2.0, b) z = +.5, c) z = 0, and d) z = -3.0. Please show your work.
Psy 231 Lab Assignment 8 1. What two things does a z-score tell us about the relative standing of a particular raw score? 2. For a particular group of scores, M = 20 and SD = 5. Give the corresponding z-score for a) x = 30, b) x = 15, c) x = 20, and d) x = 22.5. Please show your work. 3. Write the formula for changing a z-score to a raw score, and define each of the symbols. 4. For a particular group of scores, M = 10 and SD = 2. Give the raw score for a) z = +2.0, b) z = +.5, c) z = 0, and d) z = -3.0. Please show your work.