A researcher wants to test the relationship between the number of years of formal education received ?(?x_i) and the average weekly earnings ?(y_i?) ?(measured in hundred? dollars).

A report released by a government agency suggests that the average weekly earnings of individuals with no formal education is equal to ?$429. The researcher wants to test whether the average weekly earnings with no formal education is ?$429 or greater than that. He collects data from a sample of 150 individuals and estimates the following regression? function:

9.45 + 2.30X (2.45) (4.25)