Final answer:
The duration of an inspection portion of an appointment varies and can often be completed within the same day. The references provided, which mention forty-five days and other durations, do not offer adequate context to determine the specific duration for an inspection portion in a typical appointment setting.
Step-by-step explanation:
The duration of the inspection portion of an appointment can vary depending on the context of the appointment. However, it is not specifically clear as to what type of appointment is being referred to in the question. Based on a reference provided, which mentions an average time of forty-five days from a report by Willcocks (1913, 1: 301), this duration seems extensive for a standard inspection during a commonplace appointment. It may relate to a specific type of long-term appointment or project rather than a day-to-day appointment's inspection phase. Another duration is also mentioned by Barois (2010: 25), but without specific details relating to the inspection duration in an appointment. Generally, for typical appointments, you would expect an inspection portion to be completed within the same day of the appointment and often within a few minutes to a couple of hours, not days. The information given does not fully answer the student's query due to a lack of context regarding what type of appointment the inspection time relates to.