1. Compute the intercept of the regression line for the data below.
X values –5 1 2
Y values 6 6 –3
2. Compute the correlation coefficient for the data below
X values -2 -1 0 3
Y values 4 2 8 3
3. Compute the standard error of the estimate for the data below.
X values –3 –1 4 8
Y values 3 4 –1 0
4. Compute the correlation coefficient for the data below
X values –3 –2 2 11 15
Y values 5 4 –4 3 1
5. Compute the correlation coefficient for the data below
X values –5 –1 4 7
Y values 5 4 –3 2
6. If the correlation coefficient r is equal to 0.76, find the coefficient of determination and the coefficient of non determination.
7. If the equation for the regression line is y = –4x + 5, then what is the slope of this line?
8. If the equation for the regression line is y = –5x + 3, then what is the intercept of this line?