PO218 Lecture Notes - Lecture 1: Normal Distribution, Central Tendency, Null Hypothesis
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1. identify problem/question operational: exact measurements we are going to take. Theory: an educated guess, ties concepts together by stating relationships between them cause-affect independent-dependent. [identifying different concepts] inferential: randomly drawn sample dispersion central tendency distribution discrete: male female or continuous - time, distance. *know level of measurement nominal, ordinal chapter 2 ch. 2 - basic descriptive statistics population -f part sample - n whole rate- multiplied with some rate of 10. Know the normal curve z score chart for midterm. Unskewed a person has a height of 73 inches in a distribution of height where -x=68 inches and s=3 inches calculate the z score. X= 68 s=3 x=73 z= find it z=73-68 / 3 =+1. 67. How to find the area between two scores: Q: the area between a person 73 inches (0. 4525) and one 63 inch (0. 4525) is 0. 9050. A question or two fill in the table - equation (z-score)
