2. (7 points) A simple linear regression equation relates G and H as follows: G=a+bH and the dependent variable is When H is zero, G equals a. The explanatory variable is and the intercept parameter is increase in H, the change in G is units b. The linear regression equation in question 1 above is estimated using 22 observations on G and H. The least-squares estimate of b is-210.4, and the standard error of the estimate is 80.92. Perform a t-test for statistical significance at the 2 percent level of significance. i. There are ii. The value of the I-statistic is iii. Is b statistically significant? Explain. The slope parameter is For each one unit degrees of freedom for this t-test. The critical /-value for the test is