. Author manuscript; available in PMC: 2023 Feb 1.

Published in final edited form as: Int J Progn Health Manag. 2021;12(1):10.36001/ijphm.2021.v12i1.2883. doi: 10.36001/ijphm.2021.v12i1.2883

Table 6.

Comparison of those with the top 50 % in using Reactive Maintenance to those in the Bottom 50 % (i.e., Group 1 compared to Group 2 and Group 3 together), Monte Carlo Results

Variable	Top or Bottom 50 %	Min	Max	Mean	% Change: Top to Bottom (Mean)	Median	% Change: Top to Bottom (Median)	Standard Deviation
Maintenance Cost To Shipment Ratio	Top	0.009	0.021	0.016	81.7%	0.017	93.7%	0.00
Maintenance Cost To Shipment Ratio	Bottom	0.010	0.051	0.029	81.7%	0.032	93.7%	0.01
Costs due to Faults/Failures as a ratio to Shipments.	Top	0.001	0.009	0.006	−51.8%	0.006	−52.0%	0.00
Costs due to Faults/Failures as a ratio to Shipments.	Bottom	0.001	0.005	0.003	−51.8%	0.003	−52.0%	0.00
Percent of Planned Production time that is downtime	Top	5.38	13.17	10.38	−52.7%	10.44	−51.8%	1.27
Percent of Planned Production time that is downtime	Bottom	2.40	6.91	4.91	−52.7%	5.03	−51.8%	0.67
Defect Rate	Top	0.04	3.20	2.03	−78.5%	2.34	−80.7%	0.62
Defect Rate	Bottom	0.09	0.71	0.44	−78.5%	0.45	−80.7%	0.09
Percent of Sales lost due to Delays Related to Maint.	Top	1.34	4.67	3.30	−73.0%	3.36	−72.7%	0.50
Percent of Sales lost due to Delays Related to Maint.	Bottom	0.05	1.53	0.89	−73.0%	0.92	−72.7%	0.27
Percent of Sales lost due to Defects Related to Maint.	Top	0.09	1.94	1.28	−49.4%	1.39	−52.6%	0.33
Percent of Sales lost due to Defects Related to Maint.	Bottom	0.00	1.14	0.65	−49.4%	0.66	−52.6%	0.18
Percent Increase in Inventory due to Maint.	Top	1.30	6.81	4.64	−51.2%	4.69	−50.3%	0.78
Percent Increase in Inventory due to Maint.	Bottom	0.02	3.89	2.26	−51.2%	2.33	−50.3%	0.61
Percent Reactive Maintenance	Top	65.00	72.79	68.75	−67.7%	68.73	−67.6%	1.09
Percent Reactive Maintenance	Bottom	17.96	26.74	22.24	−67.7%	22.26	−67.6%	1.24

Items shown in RED indicate unexpected outcome in comparing the top and bottom