Healthcare Engineering: A Lean Management Approach

Table 5

Probability distribution for patients’ interarrival times.

Patient arrival	Shift A	Shift B	Shift C
Time	8:00–15:00	15:00–22:00	22:00–8:00
Distribution	Exponential	Exponential	Exponential
Mean	2.36	2.17	7.79
Chi-squared test	0.58	0.75	0.29
Result	Do not reject	Do not reject	Do not reject