Statement of a problem № m480


Given the following regression output,  Answer the following questions: a. Write the regression equation. b. If x1 is 4 and x2 is 11, what is the expected or predicted value of the dependent variable? c. How large is the sample? How many independent variables are there? d. Conduct a global test of hypothesis to see if any of the set of regression coefficients could be different from 0. Use the .05 significance level. What is your conclusion? e. Conduct a test of hypothesis for each independent variable. Use the .05 significance level. Which variable would you consider eliminating? f. Outline a strategy for deleting independent variables in thiscase.

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