The article Characterization of Highway Runoff in Austin, Texas, Area (Journal of Environmental Engineering [1998]: 131137) gave
Question:
The article “Characterization of Highway Runoff in Austin, Texas, Area” (Journal of Environmental Engineering [1998]: 131–137) gave a scatterplot, along with the least-squares line for x = rainfall volume (in cubic meters) and y = runoff volume (in cubic meters), for a particular location. The following data were read from the plot in the paper:
a. Does a scatterplot of the data suggest a linear relationship between x and y?
b. Calculate the slope and intercept of the least-squares line.
c. Compute an estimate of the average runoff volume when rainfall volume is 80.
d. Compute the residuals, and construct a residual plot. Are there any features of the plot that indicate that a line is not an appropriate description of the relationship between x and y? Explain.
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To answer the questions posed lets go through each part step by step a Does a scatterplot of the data suggest a linear relationship between x and y Without seeing the actual scatterplot I can only pro...View the full answer
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Related Book For 
Introduction To Statistics And Data Analysis
ISBN: 9780495118732
3rd Edition
Authors: Roxy Peck, Chris Olsen, Jay L. Devore
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