Last year I asked a question in https://www.eng-tips.com/viewthread.cfm?qid=437516 about a function to give the number of spares required for a lifetime purchase given only the number of operating hours and failures to date, the operating hours remaining, and the confidence level. -- something I...
I've asked this question at https://math.stackexchange.com/q/2717852/ without response.
We sell systems comprising line-replaceable units (LRUs). We know how many operating hours have accumulated on each LRU type (because we know when they went into service, and we ask our customers what their...
