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).

Given that a worker has received 405.6 minutes of training, what is the lower prediction limit with a 95% confidence coefficient for the time taken to troubleshoot a process problem?

Summary Statistics Variable N Mean Variance Std Dev Uncorrect Corrected SS (SSxx) X 25 6.76 4.77 2.18 1257 114.56 Y 25 17.18 18.41 4.29 7735 441.84 Parameter Estimates Parameter Standard Variable Estimate Error Intercept 29.97451 0.69096 Training (X) -1.90747 0.09744 Standard Error 1.04297 R-Square 0.9434