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 432.6 minutes of training, what is the upper prediction limit with a 90% confidence coefficient for the time taken to troubleshoot a process problem?

Summary Statistics Variable N Mean Variance Uncorrected SS Corrected SS (SSxx) X 24 7.21 5.824275 1381 133.9583 Y 24 15.9583333 19.08514 6551 438.9583 Parameter Estimates Variable Parameter Standard Estimate Error Intercept 28.48491 0.81973 Training (X) -1.73779 0. 10806 Standard Error 1.25073 R-Square 0.9216