Question: Sediment is a major water-quality problem in many rivers. Estimates are necessary for the design of sediment control programs. The sediment load (Y) in a

Sediment is a major water-quality problem in many rivers. Estimates are necessary for the design of sediment control programs. The sediment load (Y) in a stream is a function of the size of the contributing drainage area (A) and the average stream discharge (Z). Perform a regression analysis using the following data.

×103 sq mi)

(cfs)

(millions of tons/year)

8 65 1.6 19 625 6.4 31 1450 3.0 16 2400 1.6 41 6700 19.0 24 8500 15.0 3 1500 1.2 3 3500 0.4 3 4300 0.3 7 12,000 1.0

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