SOC 325 Lecture Notes - Null Hypothesis, Homoscedasticity, Statistical Significance

• School: U of S
• Department: Sociology
• Course: SOC 325
• Professor: Elizabeth Quinlan

Document Summary

Regression line: formula: the formula defines the regression line o. 5 vertical axis/crosses the y access. a = intercept or value of y when x=zero, exactly where it meets the. Easy to find once we have the b. Y = a+bx --> y-bx = a a = 3. 33 - (0. 69)(2. 67) a = 3. 33 - 1. 84 a = 1. 49 is doing 1. 49 hours of housework/week. We have a family with no children where the family produced by an individual unit of change in the independent variable (x) = slope of the regression line, the amount of change in y that is. Formula ** ignore formula 13. 3 ** b= (x x)( y y ) What we can learn from b when it has a value. For every additional child, husbands do 2 hours more of housework. For every additional child, husbands do 3/4 hour more housework. For every additional child, husbands do 4 and a 1/2 hours less housework.