Truncated Life Test Plans for Economic Reliability Based on Four-Parametric Burr Distribution

Table 1

Minimum sample size for the specified ratio 𝑡/𝛽₀, confidence level 1−𝛼^∗, acceptance number 𝑐, 𝑘=2, and 𝛼=2 using binomial approximation.

1−𝛼^∗	𝑐	𝑡/𝛽0
		0.306	0.413	0.521	0.627	0.841	1.055	1.483	1.911
0.75	0	7	4	3	2	1	1	1	1
0.75	1	15	9	6	4	3	2	—	—
0.75	2	22	13	9	7	4	3	—	—
0.75	3	30	17	12	9	6	5	—	—
0.75	4	37	22	15	11	8	6	—	—
0.75	5	44	26	18	13	9	8	—	—
0.75	6	50	30	21	16	11	9	—	—
0.75	7	57	34	23	18	13	10	—	—
0.75	8	64	38	26	20	14	12	—	—
0.75	9	71	42	29	22	16	13	—	—
0.75	10	77	46	32	25	18	14	—	—
0.9	0	12	7	4	3	2	1	1	1
0.9	1	22	12	8	6	4	3	2	2
0.9	2	30	17	12	9	6	4	3	3
0.9	3	38	22	15	11	7	6	4	4
0.9	4	46	27	18	14	9	7	6	5
0.9	5	54	32	22	16	11	9	7	6
0.9	6	61	36	25	19	13	10	8	7
0.9	7	69	41	28	21	15	12	9	8
0.9	8	76	45	31	24	16	13	10	9
0.9	9	84	49	34	26	18	14	12	10
0.9	10	91	54	37	28	20	16	13	12
0.95	0	16	9	6	4	2	2	1	1
0.95	1	27	15	10	7	5	3	2	2
0.95	2	36	21	14	10	7	5	4	3
0.95	3	44	26	17	13	8	6	5	4
0.95	4	53	31	21	16	10	8	6	5
0.95	5	61	36	24	18	12	10	7	6
0.95	6	69	40	27	21	14	11	9	8
0.95	7	77	45	31	23	16	13	10	9
0.95	8	84	50	34	26	18	14	11	10
0.95	9	92	54	37	28	19	15	12	11
0.95	10	99	59	40	31	21	17	13	12
0.99	0	24	14	9	6	4	3	1	1
0.99	1	37	21	14	10	6	5	3	2
0.99	2	47	27	18	13	8	6	4	4
0.99	3	57	33	22	16	11	8	6	5
0.99	4	66	38	26	19	13	10	7	6
0.99	5	75	44	29	22	15	12	8	7
0.99	6	84	49	33	25	17	13	10	8
0.99	7	92	54	37	27	18	14	11	9
0.99	8	100	59	40	30	20	16	12	11
0.99	9	109	64	43	33	22	17	13	12
0.99	10	117	69	47	35	24	19	15	13