Downloaded from https://www.everyspec.com AM P 70&19W Design a 1-sample plan so that if the average lot reliability for a 100-hr period to 0.99, there it a 90% probability of acceptance, and if the average lot reliability is 0.95, there is only a 10% pi-obabllIty of acceptance. 1. Satc the parameters of the problem. 1. The parametern are 0 0.10 -0.10 Re - 0.99, N 0 u 0.01 Al - O. 95, It a .05. 2. Computey from Eq. 3-5. 2. '. 0.005/0.01 -m.00. 3. Enter Table 3-6 for the appropri- 3. For a 1-sample plan with a - 0. 10, ate parameters and determine Nand - 0. 10, an 'y m 5, from Table 3-6 c for a 1-sample plan. we get N 110 c -2.
Therefore, 110 Items must be test•l for 100 hr each, and the lot Is ac- cepted if 2 or fewer faitures occur. 4. Use Eqs. 3-7 and 5-9 to calculate 4. true a - 9. 87% the true a, P. - 8.3%. C,.. ..% 36i