The question asks:

Use Simpson's Rule and all the data in the following table to estimate the value of the integral S (with 10 at the bottom, 16 at the top) ydx .

x 10 11 12 13 14 15 16

y -8 5 -6 -6 -4 0 0

I keep getting 32 as my answer, however this is incorrect.

What am I doing wrong?

Thanks for any help/suggestions.