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Questions - Littles Formula

A GP practice receives on average 90 patients per day (opening hours between 9 am and 12 pm and 1 pm and 6 pm). During peak times (10 am 12 pm and 2 pm 5 pm), the GP practice receives around 60 patients in total, and 9 patients can be found in the GP practice (on average) at a given point in time. At non-peak times, the GP practice receives 30 patients in total, and 6 patients can be found in the GP practice (on average) at a given point in time. Assumption: a lunch break is hold from 12 pm to 1pm where the practice is closed.

Please answer the following questions in the BELOW

• What is the average work in progress (WIP) during peak times? (1 mark)
• What are the peak hours? (1 mark)
• What is the arrival rate during peak hours? (2 marks)
• What is the average time that a patient spends in the GP practice during peak times? (2 marks)
• What is the average work in progress (WIP) during non-peak times? (1 mark)
• What are the non-peak hours? (1 mark)
• What is the arrival rate during non-peak hours? (2 marks)
• What is the average time that a patient spends in the GP practice during non-peak times? (2 marks)