Question 30 Assume we are still studying the waiting times arising from two queueing systems using the same System 1 observations as on the previous problem. But now we have used common random numbers in the System 2 simulation to induce positive correlation between the results of the two systems. Again find a two-sided 95% confidence interval for the difference in the means of the two systems. Replication System 1 System 2 10 20 2 20 25 3 25 30 4 35 40 O a. [-30.66, -15.71] O b. [-17.65, -9.21] O c. [-10.23, -2.27] O d. [0.65, 7.39] O e. [2.16, 10.04]