PSYC 2002 Lecture Notes - Lecture 5: Standard Deviation, Frequency Distribution, Probability Theory

• School: Carleton University
• Department: Psychology
• Course: PSYC 2002
• Professor: Steven Carroll

Document Summary

Z-scores requires a knowledge of standard deviation. The distribution of sample means requires an understanding of the mean and of the. Probability theory requires a knowledge of frequency distributions, proportions standard deviation. Hypothesis testing requires an understanding of z-scores, probability theory, and the distribution of sample means. Calculate z when x= 60, = 50, and = 20. Calculate z when x= 60, = 50, and = 5. It describes the exact location of a score in a distribution. A z-score of +. 5 indicates x was exactly one-half standard deviations above the mean of. A z-score of +2 indicates x was exactly two standard deviations above the mean of the the distribution of scores distribution of scores. Calculate z when x= 50, = 60, and = 20. Calculate z when x= 50, = 60, and = 5. What is a z-score? the distribution of scores distribution of scores.