11. A two-stage assembly line is balanced with the expected time at each station equal to 4 minutes. Assume that the time at each station has a probability of 0.30 that 3 minutes will be required for the operation and a 0.30 probability that 5 minutes will be required for the operation.

a. Simulate the passage of 20 objects through these two stages of the line. Start at the top of the left major column of the random number table in Appendix IV. Use the two left-hand digits to determine the time on the first station and the two righthand digits to determine the time at the second station. When the run is begun, there is a job at each station. The first job on the first station will become the second job on the second station.

b. Determine the idle time and length of the queue at the second work station.