Question 32
A chain of clinics measures “Doctor Utilization Rate”:
Utilization = Total Consultation Minutes / Available Working Minutes
Data for last quarter: ● Overall across all clinics: Utilization = 80%. ● You then segment by Clinic_Type: ● Urban clinics: Utilization = 78% ● Rural clinics: Utilization = 76%
A senior manager concludes: “Segmentation doesn’t change the picture; utilization is around 77–80% everywhere.”
You dig deeper and find: ● Urban clinics account for 90% of Available Working Minutes. ● Rural clinics account for 10%. ● Within Urban, junior doctors average 60% utilization, senior doctors 95%. ● Within Rural, junior doctors average 85%, senior doctors 70%.
Which statement best describes the main analytical risk in the manager’s conclusion?
The manager ignored seasonality effects across the quarter.
The manager is averaging across subgroups in a way that can hide opposite trends at a finer level
The manager should have used Median utilization instead of Mean.
The manager is wrong because utilization cannot exceed 80% if any subgroup is below 80%.