Problem 1 [50 points) Recall your experience with the NSU canteen. You should have observed many processes that the canteen staff performs when serving you. You are their customer. For example, you may have seen how the cashiers operated. (a) Select any two processes that you can remember. Indicate how Control Charts can be used to monitor these two processes that you select. Provide the details of the Control Charts that you consider appropriate. How do your Control Charts link to your definition of quality at the canteen? [20 points] (b) Using the results of your control charts, what will you recommend for improving the customer experience at the NSU canteen? [20 points] (c) What will you recommend to reduce the customer waiting time during the peak hours at the NSU canteen [10 points)