Which of the following correctly defines F statistic if SSR, represents sum of squared residuals from the restricted model of hypothesis testing, SSR ur represents sum of squared residuals of the unrestricted model, and q is the number of restrictions placed? (SSR - SSR)/q ur SSR/(n-k-1) (SSR-SSR)/(n k 1) O a. F= O b.F= OC. F= O d. F= SSR/q ur (SSR - SSR)/q SSR,/(n-k-1) (SSR, - SSR)/q SSR/(n-k-1)