15 The long run average time that a voter spends in the system (waiting and being served) is given by the formula: W = L / lambda = 5 voters / 10 voters per hour = 0.5 hours This is the long run average amount of time that a voter will have to wait before casting their vote. Converting this to minutes, we get: W = 0.5 hours * 60 minutes per hour = 30 minutes. Note that the answer is slightly off. As Chat GPT correctl y computed, there will be 5 voters in the system (waiting and being served). So, the correc t answer fo r the wait ing time before casting the vote should be 25 minutes. But this comes close enough to a passing grade, say a solid B. A gain, this is after receivi ng a hint – the i nitial answer was more in th e C range. One more note on this question: when I retur ned t o Cha t GPT the next day asking the same initial que ueing question (the one without the hint referencing queue ing theory), Chat GPT imme diate ly answered the question correctly – a hint was no longe r ne cessary. It either is capable of learning from past feedback or I just got luc ky (as we saw above, there se ems to exist some randomness in the quality of the answers). TOYOTA P RODUCTION SYSTEM In addition to questions involving calculations, some of my exam quest ions are m ore co nceptual in nature. Often t imes, such conceptual questions are in a multiple choice format. So , my final question looks at the effect of using Kanban card s to move work through a proce ss. QUESTION 7 Which of the following statements is correct? I. Deploying the Kanban system leads to pulling work through the system instead of pushing work. II. Deploying the Kanban system leads to pushing work through the system i nstead of pulling work. III. The Kanban system controls the work in process inventory.