Exhibit 9.5 The Following Questions Are Based on the Description and Spreadsheet

Essay

Exhibit 9.5
The following questions are based on the description and spreadsheet below.
An analyst has identified 3 independent variables (X₁, X₂,X₃) which might be used to predict Y. He has computed the regression equations using all of the variables and the results are summarized in the following table.
-Refer to Exhibit 9.5. Predict the mean value based on (X₁, X₂, X₃) = (3, 32, 50). Use the best predictive model based on data from the table.