Using 20 observations, the multiple regression model y = 0 + 1 x 1 + 2 x 2 + was estimated.

Using 20 observations, the multiple regression model y = β₀ + β₁x₁ + β₂x₂ + ε was estimated. Excel produced the following relevant results.

a. At the 5% significance level, are the explanatory variables jointly significant?
b. At the 5% significance level, is each explanatory variable individually significant?
c. What is the likely problem with thismodel?

MS Significance F 3.07E-08 Regression Residual Tota 2 2.12E+12 1.06E + 12 56.5561 17 3.19E+11 188+ 10 19 244E+12 Standard Lower Upper Coefficients Error tsar p-value 95% 95% ntercept 98755731583.5052 0.00001265173709941 29233 326530.8952 0.383239660 98125 30283 32645 09276 0.36663859299158 Xi