Answer the following questions using the data from the Excel file grade inflation by semester.xlsx described in
Question:
Answer the following questions using the data from the Excel file grade inflation by semester.xlsx described in Problem 16.41:
a. Forecast the average GPA for each semester during 2018 using a multiple regression with seasonal dummy variables.
b. Interpret the meaning of the coefficients for the seasonal dummy variables.
c. Calculate the MAD for this forecast.
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a Dummy Variables SD1 SD2 Fall 0 0 Spring 1 0 Summer 0 1 Set x 1 Period x 2 SD...View the full answer
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