Archived posting to the Leica Users Group, 1997/06/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]We don't really have to wait for a failure to occur in order to workout the MRBF of R8. Statistically we can estimate if the MRBF of R8 is better than that of RTS III given by Otto , with a given statistical confidence level (usually 90% or 95%). All I need to know is (from Ted and others) how many rolls of film you have put through how many of R8. And Otto, I have missed out your data on the RTS III, can you post to me again? If I remembered correctly, what you have given earlier was the observed MRBF based on 4 bodies, it was not THE MRBF, we can only estimate a confident-interval (range) of MRBF values based on your data. Well, only if you trust statistics....... Cheers, Eng-Suan engsuan@tp.ac.sg (65)780-5532 >---------- >From: ted grant[SMTP:75501.3002@CompuServe.COM] >Sent: Sunday, June 08, 1997 10:24 PM >To: INTERNET:leica-users@mejac.palo-alto.ca.us >Subject: Re: Leica-Users List Digest V1 #495 > >Otto wrote: > ><Don't forget to give us your MRBF (Mean Rolls Between Failures) figures on >the >R8, once you have driven enough films through.>>>>>> > >Hi Otto, > >I'm thinking positive and hope the first failure will be about thirty years >from >now! :) > >ted >Victoria, Canada >http://www.islandnet.com/~tedgrant > >