Using the data from Exercise 7.74, test the following at
Chapter , Problem 7.77(choose chapter or problem)
Using the data from Exercise 7.74, test the following at the 0.05 level. (a) H0: 1 = 0 versus H1: 1 = 0; (b) H0: 2 = 0 versus H1: 2 = 0. (c) Do you have any reason to believe that the model in Exercise 7.74 should be changed? Why or why not?
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