Question: 11.4.8 Consider the data from Exercise 11.2.6 on y = chloride concentration in surface streams and x = roadway area. a) Test the hypothesis H0:

11.4.8 Consider the data from Exercise 11.2.6 on y = chloride concentration in surface streams and x = roadway area. a) Test the hypothesis H0: 1 = 0 versus H1: 1 0 using the analysis of variance procedure with = 0.01. b) Find the P-value for the test in part (a). c) Estimate the standard errors of 1and 0 d) Test H0: 1 = 0 versus H1: 0 0 using = 0.01. What conclusions can you draw? Does it seem that the model might be a better fit to the data if the intercept were removed? (from exercise 11.2.6)

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