Refer to the following multiple regression analysis.

a. What is the sample size?

b. Compute the value of R2.

c. Compute the multiple standard error of estimate.

d. Conduct a global test of hypothesis to determine whether any of the regression coefficients are significant. Use the .05 significance level.

e. Test the regression coefficients individually. Would you consider omitting any variable(s)? If so, which one(s)? Use the .05 significance level.

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Analysis of Variance Source DF SS MS Regression 100 20 Residual Error 20 40 2 Total 25 140 Predictor Coefficient SE Coefficient Constant 3.00 1.50 2.00 X1 4.00 3.00 1.33 X2 3.00 0.20 15.00 X3 0.20 0.05 4.00 X4 -2.50 1.00 -2.50 X5 3.00 4.00 0.75