Question: Given the data, (a) Fit a quadratic curve using the equations on page 391. (b) Verify your answers using software. R: summary(lm(y ~ x +

Given the data,

-3 -2 5 10 -1 0 1 3 4 13 2 12

(a) Fit a quadratic curve using the equations on page 391.
(b) Verify your answers using software.
R: summary(lm(y ~ x + x2)) where x and y contain the observations and x2= x*x

-3 -2 5 10 -1 0 1 3 4 13 2 12 3 23

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