Compare the results for Model 4-1, Exercise 4-23, and Exercise 4-24, looking at the average total times in system of the three different exit possibilities (shipped, salvaged, and scrapped). In an attempt to make the comparison more statistically meaningful, make 100 replications of each. Make a table or graph summarizing your results, and discuss with respect to the relative structures of these three models. What suggestions would you have for further investigation of these differences?