Determination of Optimal Warranty Period with Preventive Maintenance Actions for Items from Heterogeneous Populations

Table 4

Optimal set of parameters and the corresponding minimum ECR for different settings of to investigate the optimal length of warranty period when and

	ECR		ECR
1	1	1.27	5.8477	1.47	10.2980
	2	1.16	11.7406	1.39	29.5430
	3	1.10	17.6779	1.24	31.0320
	4	1.06	23.6588	1.30	59.2699
	5	1.03	29.6828	1.18	51.9460
2	1	1.34	7.1828	1.44	11.6331
	2	1.23	14.4113	1.34	23.3125
	3	1.15	21.6847	1.27	35.0376
	4	1.12	29.0022	1.23	46.8079
	5	1.08	36.3635	1.19	58.6231
3	1	1.42	8.5179	1.43	12.9682
	2	1.26	17.0818	1.38	25.9827
	3	1.19	25.6909	1.30	39.0431
	4	1.15	34.3446	1.25	52.1489
	5	1.12	43.0424	1.22	65.2997
4	1	1.42	9.8530	1.43	14.3033
	2	1.28	19.7522	1.40	28.6529
	3	1.24	29.6967	1.34	43.0485
	4	1.20	39.6862	1.28	57.4897
	5	1.15	49.7203	1.24	71.9761
5	1	1.41	11.1881	1.51	15.6383
	2	1.34	22.4224	1.41	31.3231
	3	1.27	33.7024	1.33	47.0540
	4	1.23	45.0275	1.30	62.8304
	5	1.20	56.3974	1.27	78.6552