regression equation

Q8....You are given the following six points: 

x -5 -2 0 3 4 7 
y 15 9 7 6 4 1 

a) Determine the regression equation. 
b) Use the regression equation to determine the predicted values of y. 
c) Use the predicted and actual values of y to calculate the residuals. 
d) Compute the standardized residuals. 
e) Identify possible outliers. 

Q5:Conduct a test to determine whether the two classifications r and c are independent, using the data in the following contingency table. Use α = .10. 

C1 C2 C3 
R1 40 32 48 
R2 30 48 52