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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 7 6 9 11 11 5 14 8 15 20
y 29 28 32 18 21 24 32 24 24 32
(a) Find the equation of the line of best fit.
y hat = + x
(b) Find se2.

y hat = .255x + 23.695
y bar = 26.4
x bar = 10.6
SE² =
[ Σ(yyBar)^2  [Σ(xxBar)(yyBar)]²/Σ(xxBar)² ] /(n2)
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