ABCDEFGHIJKLMNOPQRSTUVWXYZAAABACADAEAFAGAHAIAJ
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time taken: 30 mins
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"you've found that the time (in hours) between failures of each of the machines follow a Weibull distribution"
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Failures within a two week interval are BAD
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8
hours / day
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days / week
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MachineBeta_iTheta_i
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M10.88145817.431
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M21.05568653.595
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M31.39012523.077
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M41.11599701.351
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R(t) = 1 - F(t)
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So just sub in t as t*
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work weeks
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8hours / day
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5
days / work week
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t* (in hours)= 80hours
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time (hours)R1(80 hrs)R2(80 hrs)R3(80 hrs)R4(80 hrs)
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800.87904993640.89682885440.92911984250.9151443056
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"you've found that the time (in hours) between failures of each of the machines follow a Weibull distribution"
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MachineM1M2M3M4
(so yes, the time column does not need to be adjusted)
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Beta_i0.881451.055681.390121.11599
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Theta_i817.431653.595523.077701.351
R(t) = 1 - F(t)
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M1M2M3M4
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time (hours)
F1(t)F2(t)F3(t)F4(t)
time (hours)
R1(t)R2(t)R3(t)R4(t)
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10.0027054022110.0010658677850.00016627671860.000666530081610.99729459780.99893413220.99983372330.9993334699
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20.0049782831550.0022143432990.00043575334760.00144409985320.99502171680.99778565670.99956424670.9985559001
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30.0071093539270.0033953450860.000765520930.00226951884230.99289064610.99660465490.99923447910.9977304812
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40.0091518907280.0045974534310.0011417082850.00312735711340.99084810930.99540254660.99885829170.9968726429
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50.011130096540.0058151073790.0015566160440.00400992143250.98886990350.99418489260.9984433840.9959900786
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60.013057810980.0070449723880.002005189330.00491252318660.9869421890.99295502760.99799481070.9950874768
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70.014943977660.0082848132340.002483792630.00583197972270.98505602230.99171518680.99751620740.9941680203
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80.016794841480.0095330218280.0029896544990.0067659775580.98320515850.99046697820.99701034550.9932340225
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90.018615003870.010788382970.0035205745470.00771275290290.98138499610.9892116170.99647942550.9922872471
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100.020407992430.012049944420.0040747524280.008670912966100.97959200760.98795005560.99592524760.991329087
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110.022176595340.013316938920.0046506805470.009639327669110.97782340470.98668306110.99534931950.9903606723
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120.023923070360.014588734370.0052470729450.01061706018120.97607692960.98541126560.99475292710.9893829398
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130.025649282130.01586480060.0058628161030.01160332016130.97435071790.98413519940.99413718390.9883966798
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140.027356796040.01714468620.0064969336880.01259743109140.9726432040.98285531380.99350306630.9874025689
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150.029046944470.018428001970.0071485605760.01359880672150.97095305550.9815719980.99285143940.9864011933
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160.030720874980.019714408730.0078169232290.01460693372160.9692791250.98028559130.99218307680.9853930663
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170.032379586060.021003608080.0085013245670.01562135848170.96762041390.97899639190.99149867540.9843786415
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180.034023954280.022295335430.0092011321070.01664167699180.96597604570.97770466460.99079886790.983358323
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190.035654755260.023589354430.0099157685040.01766752691190.96434524470.97641064560.99008423150.9823324731
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200.037272680070.024885452640.010644703910.01869858124200.96272731990.97511454740.98935529610.9813014188
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210.038878348350.026183438020.011387449750.01973454325210.96112165170.9738165620.98861255020.9802654568
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220.040472318750.027483136110.012143553540.02077514233220.95952768120.97251686390.98785644650.9792248577
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230.042055097570.028784387650.012912594580.0218201306230.95794490240.97121561240.98708740540.9781798694
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240.043627145710.030087046690.013694180380.02286928003240.95637285430.96991295330.98630581960.97713072
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250.045188884570.031390978960.014487943520.02392238012250.95481111540.9686090210.98551205650.9760776199
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260.046740700890.032696060480.015293539060.02497923584260.95325929910.96730393950.98470646090.9750207642
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270.048282950870.034002176470.01611064230.026039666270.95171704910.96599782350.98388935770.973960334
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280.049815963650.035309220260.016938946790.02710350169280.95018403630.96469077970.98306105320.9728964983
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290.05134004430.036617092550.017778162630.02817058509290.94865995570.96338290740.98222183740.9718294149
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300.052855476360.03792570060.018628015010.02924076837300.94714452360.96207429940.9813719850.9707592316