CHYS 3P15 Lecture Notes - Standard Deviation, Normal Distribution, Standard Score

• School: Brock University
• Department: Child and Youth Studies
• Course: CHYS 3P15
• Professor: Patricia Kirkpatrick

Document Summary

Haan: an introduction to statistics for canadian social scientists. Chapter 7: standard deviations, standard scores, and the normal curve. Textbook corrections for old text: p. 62. , where the formula for the z-score appears, and then a calculation. The denominator got lost part-way through the calculation. i. e. , it should be (20 32. 3) / 10. 2. [this is indeed the number that appears below]: the last line of that paragraph reads, you"ll need to subtract the value for 1. 21 from 1 . But, these don"t match the values from table 7. 1 or appendix a. In appendix a, they are . 3869 and . 2734. So the percentages that follow are also (slightly) incorrect. Lines drawn at -2sd -1sd mean +1sd +2sd. 3 n o i t c a r. 4: distribution of a variable will approach/achieve normality with an infinite number of samples, the larger the sample, the better.