Constructing the Scatter plots and estimating the simple linear regression equation
Look at the relationship between a husband's education and his wife's education separately for couples in which the wife is employed full time and in which the wife is not employed full time.
1. Create a scatter plot, show the regression lines.
2. Is there a relationship between a husband's and wife's education for both groups of couples? What is the correlation coefficient between a husband's and wife's education for couples in which the wife is employed full time? For couples in which the wife is not employed full time?
3. Write down a description on what this data means. What conclusions can you draw from this data?