The partial results below are based on a sample of recently trained workers, to determine if the number of hours of training time received (X, in hours) has helped in improving the time taken to troubleshoot a process problem (Y, in minutes). Summary Statistics Variable N Mean Variance Uncorrected SS Corrected SS (S5xx) X 29 6.93 6.852217 1585 191.8621 29 16.58621 25.39409 8689 711.0345 Parameter Estimates Variable Parameter Standard Estimate Error Intercept 29.58501 0.61797 Training (X) -1.87545 0.08359 Standard Error 1.15784 R-Square 0.9491 What is the upper limit of the 98% confidence interval estimate for the average time taken to troubleshoot a process problem, of all workers with 415.8 minutes of training time