SOCI 328 Lecture Notes - Lecture 12: Interval Ratio, Standard Deviation, Confidence Interval
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Unit 9- association between two interval ratio variables nov 7: pearso(cid:374)"s r, measures the strength and direction of the relationship. Y (literacymen) = 0. 6433 (literacywom) + 35. 786: r2 is the proportion of total variability in y that can be attributed to x, three uses of a regression line, 1. Assessing the linearity of relationship between x and y: 2. Summarizing the nature of relationship between x and y: 3. Predicting a y value for any given value that we are particularly interested in: 1. Y = 11. 037 (1. 51) 11. 335 = 5. 33 gus would only be making . 33 an hour, so that less than his original hourly wage: 6. However, it does not apply to a small growth in height. A(cid:1005)= mario"s hypothesis (cid:449)as supported (cid:271)e(cid:272)ause it is a positi(cid:448)e asso(cid:272)iatio(cid:374). A(cid:1006)= mario"s hypothesis depe(cid:374)ds if it statisti(cid:272)ally sig(cid:374)ifi(cid:272)a(cid:374)t of (cid:374)ot.
