Representative data read from a plot that appeared in the paper Effect of Cattle Treading on Erosion from Hill Pasture:
a. Using the data for steeply sloped plots, find the equation of the least-squares line for predicting y = runoff sediment concentration using x = percentage of bare ground. y^ = 59.9 + 27.46x
b. What would you predict runoff sediment concentration to be for a steeply sloped plot with 18% bare ground?
c. Would you recommend using the least-squares equation from Part (a) to predict runoff sediment concentration for gradually sloped plots? If so, explain why it would be appropriate to do so. If not, provide an alternative way to make such predictions.
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