표 5. | Table 5. 시료 수 분석 결과 (신뢰도 80%, 신뢰수준 60%, 시험기간 3,840시간) | Results of sample size analysis (reliability 80%, confidence level 60%, test time 3,840hr)

Sample Size	Test Time for 0 Failures	Test Time for 1 Failures	Test Time for 2 Failures
1	7,781	N/A	N/A
2	5,502	9,922	N/A
3	4,492	7,438	11,069
4	3,891	6,233	8,569
5	3,480	5,478	7,302
6	3,177	4,946	6,485
7	2,941	4,545	5,897
8	2,751	4,229	5,448
9	2,594	3,971	5,088
10	2,461	3,755	4,792