Statistics
posted by Casey .
I already found part A just need help with B!
The computerscience aptitude score, x, and the achievement score, y (measured by a comprehensive final), were measured for 10 students in a beginning computerscience course. The results were as follows. (Give your answers correct to two decimal places.)
x 22 11 7 18 14 8 22 9 9 6
y 15 24 28 28 33 27 21 30 19 15
(a) Find the equation of the line of best fit.
Y = 26.24 + .18 x
(b) Find se2.

se2 = sqrt (SSE/n2))
e = yyhat
e = 26.24.18(22) =22.28
x. y. y hat e e^2
22. 15. 22.28. 7.28. 52.9984
11. 24. 24.26 .26. 0.0676
7. 28. 24.98. 30.2. 9.1204
18. 28. 23. 5. 25
14. 33. 23.72. 9.28. 86.1184
8. 27. 24.8. 2.2. 4.84
22. 21. 22.28 1.28. 1.6384
9. 30. 24.62. 5.38. 28.9444
9. 19. 24.62. 5.62. 31.5844
6. 15. 25.16. 10.16. 103.226
Sum of e^2 = 343.578
se = sqrt(343.578/8))
se = 6.55342