This Educational Attainment and Marriage Age - Testing a Correlation Coefficient's Significance activity & project also includes:
Do women with college degrees get married later? Using a provided scatter plot of the percentage of women who earn bachelor's degrees and the median age at which women first get married over time, pupils conduct a linear regression analysis of the data. They create a regression equation, interpret the slope and y-intercept of the best-fit line, calculate a correlation coefficient, and decide whether the relationship is statistically significant.
- Challenge the class to perform similar analyses with other data sets from the US Census
- Scholars should be familiar with null and hypothesis testing, as well as the meaning of significance levels
- Knowledge of linear regression is necessary
- Provides optional directions for determining the correlation coefficient on a TI-84 graphing calculator
- Includes student worksheets with sample responses for instructors to reference