The following output was obtained.

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 significancelevel.

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Analysis of Variance Source Regression Residual Error Total MS 20 DF 20 25 100 40 140 Predictor Coefficient SE Coefficient t Constant 3.00 4.00 3.00 0.20 2.50 3.00 1.50 2.00 3.001.33 0.20 15.00 0.054.00 1.00 -2.50 4.00 0.75 Ху x5