Question: Question 2: [10 Marks] A restaurant serves 2000 meals every day and finds the number of wrong meals served every day as following: a. What

Question 2: [10 Marks] A restaurant serves 2000 meals every day and finds the number of wrong meals served every day as following: a. What type of control chart should be used here? Why? [2 Marks] b. Plot the Phase-I control chart based on three-sigma limits. Is the service process in control or out of control? What conclusion can you draw based on the Phase-I control chart? [8 Marks] Question 3: [10 Marks] A restaurant receives a number of complaints in the last 12 months about the service: a. What type of control chart should be used here? Why? [2 Marks] b. Plot the Phase-I control chart based on three-sigma limits. Is the service process in control or out of control? What conclusion can you draw based on the Phase-I control chart? [8 Marks]

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