Question

The accompanying table shows the regression results when estimating y = β0 + β1x1 + β2x2...

The accompanying table shows the regression results when estimating y = β0 + β1x1 + β2x2 + β3x3 + ε.

df SS MS F Significance F
Regression 3 453 151 5.03 0.0030
Residual 85 2,521 30
Total 88 2,974
Coefficients Standard Error t-stat p-value
Intercept 14.96 3.08 4.86 0.0000
x1 0.87 0.29 3.00 0.0035
x2 0.46 0.22 2.09 0.0400
x3 0.04 0.34 0.12 0.9066


At the 5% significance level, which of the following explanatory variable(s) is(are) individually significant?

Multiple Choice

a. x2 and x3

b. x1 and x2

c. Only x3

d. Only x1

Math   Statistics-And-Probability   
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