The peak discharge (Q) of a river is an important parameter for many engineering design problems, such as the design of dam spillways and levees. Accurate estimates can be obtained by relating Q to the watershed area (A) and the watershed slope (S). Perform a regression analysis using the following data. Assess the goodness of fit of the model.

A

(sq mi)

S

(ft/ft)

Q

(cfs)

36 0.005 50 37 0.040 40 45 0.004 45 87 0.002 110 450 0.004 490 550 0.001 400 1200 0.002 650 4000 0.0005 1550