Chapter 17, Problem 16P

Given these data

x	5	10	15	20	25	30	35	40	45	50
y	17	24	31	33	37	37	40	40	42	41

use least-squares regression to fit

(a) A straight line,

(b) A power equation,

(c) A saturation-growth-rate equation, and

(d) A parabola.

Plot the data along with all the curves. Is any one of the curves superior? If so, justify.