5. Suppose you get these results from your final run. Y = a B1X1 + B2X2 26 .4 + 0 . 65X1 - 0. 82X2 st . d (10) (.25) (1.36) N = 130 R2 = . 72 Adjusted R? = . 65 F = 6 Now you need to compute a. the t ratios for a and each B, and show which ones are significant (critical t ratio is 1. 645) . Say why . b. And estimate Y if X1 is 25,000 and X2 is 6000