?????????2????????????????
??????????????δ????????2011-04-15 16:11:48
???????????????=??????????+??????????????-40??/1000+20%??*??????????*??1+???????????????????
?????????????????????????????????????????????????????????????????????????????????????????????????????????10*30%?????????????13??
??????????????????????????????д??????????????????ο???
????С????90??50.3??????С????92??22.8???????????????????????????????56.8
50.3+??(92-40)/1000+20%??*22.8*(1+0%)=56
????С????90??50??????С????80??23.1??????????????????????????????55.9
50+??(80-40)/1000+20%??*23.1*(1+0%)=55.5
????С????80??50????????80??20???????????????????????????????55
50+??(80-40)/1000+20%??*20*(1+0%)=54.8
????С????90??50????????88??50???????????????????????????????61.5
50+??(88-40)/1000+20%??*50*(1+0%)=62.4
??????76??50????????72??20.3?????????????????????????????????54.8
50+??(72-40)/1000+20%??*20.3*(1+30%)=54.7
????С????95??50??????С????77??50???????????????????????????????60.6
50+??(77-40)/1000+20%??*50*(1+0%)=61.8
????С????94??50.1??????С????80??45.9???????????????????????????????60.1
50.1+??(80-40)/1000+20%??*45.9*(1+0%)=61
??????94??54.1??????С????90??50.2???????????????????????????????65.8
54.1+??(90-40)/1000+20%??*50.2*(1+10%)=66.6
????μ???????????????=??????????+20%*?????????*(1+??????????????????)
???????????94??54.8??????С????90??50.8????????????????????????????????67.2
54.8+20%*50.8*(1+10%)=65.9
???????????95??62.3??????С????95??50.1????????????????????????????????72.2
62.3+20%*20*(1+10%)=73.3
??????????90??45.2????????87??45.3??????????????????????????????60.2
45.2+20%*45.3*(1+30%)=56.9
???????????93??54??????С????76??27???????????????????????????????61
???????:??????????????????40407?????????????40407???????????α? ????
88
0
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????????????????????????????????????????40407???????40407????????
???????2
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