A time-terminated life testing plan is to be found that will reject lots with a mean life

Question:

A time-terminated life testing plan is to be found that will reject lots with a mean life of 1500 hours with a probability 0.05 and accept lots with a mean life of 600 hours with a probability of 0.10. Items that fail during the test are not replaced. Determine the plan, using Handbook H-108, if the sample size is to be five times the rejection number.