XminXmaxChi Square MaxChi Square MinMTBF Lower Bound ( hr )MTBF Upper Bound ( hr )Component Reliability CalculatorCopyright 2004 Optinet Inc.RETURNTotal Time of Operation ( hr)Total No. of Failures ( # )Confidence Level ( % ) ResultsMean Time Between Failures ( hr ) InputIGammaIntegralResult Monitor Reference Chi Square Reference MTBF Go To System Reliability Calculator