Reference no: EM131830099
Using the information that you developed in your responses to Question 9 (related to level of education and expenditures at a book store), predict the amount of expenditure for someone with 20 years of education.
Question 9
Assume you've collected information from customers at a local bookstore. More specifically, for 10 customers, you have the following information on their levels of education and expenditures on book purchases.
Mean of X = 13 Standard Deviation of X = 3.46
Mean of Y = 15.70 Standard Deviation of Y = 15.28
Note that the two variables, years of education (X) and dollar amount of expenditure (Y), have already been transformed into Z scores
a. Calculate and interpret r.
b. Calculate and interpret r2.
c. Calculate a and b in the regression equation (Y' = a + bX).
d. Calculate the standard error of the estimate.
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