?λ????????δ????????????????
???????????????????????????????????????????2018??5??3????????????????????λ?????
?????????
???????????????????????4???????????????????????????????????????????????????????????????????????????????2????
1. ?????????????69??1380?? ; 69x20=1380.
???????????????? ??????x20.
???100???????????????????????2000???????????????????
??????????????????????????????????
2. ???????????????????????
????????????????????????
?????????????????????
?????????????????????????????x2.
?????????????????A???????????????????????????A+??????x2???????(?????????????С????????????????????)
a. ?????????????????(???????1340??????12??????)??????????(???????923??????12??????)??
????????????????????Χ????? 417(95%-105%)????????????????涼?????????????????????????????11???????????396,400,404,408,413,417,421,425,429,433,437.?м?????????? 417.
?????????????????????????????????????????????????????? 549(95%-105%)??
b. ?????????????????(???????1124??????12??????)??????????(???????683??????12??????)??
????????????????????Χ????? 441(95%-105%)??
?????????????????Χ?????578(95%-105%)??
c???????????????????(???????1340??????12??????)??????????(???????683??????12??????)??
????????????????????Χ????? 657(95%-105%)??
?????????????????Χ?????787(95%-105%)??
???????????(417,549)(441,579)(657,787)???????549-417=132;570-441=138;787-657=130;138=69x2
???????????????????????? ??????x2 ??????????????????????????????????
3. ??????????????????????Ч???????????(?????????????????)???????????????????????????????????
?????????
1/2/3????????????????60%?????1????????????????????Ч????????3???????????????????????Ч??????????????????Ч????
???????????Σ????е?????????????????С??69???????????л???????Ч??(1????)??
?????????????????????С??顣109???????????????3268????????????????????!109x30=3270?? 3268??????￡?
??????????????????????x30.(???????????????????109??????109???????????????)??
?????????????????????????????μ??????????????
1. ???????????
????447?Σ?????143?Σ???????????????? 143/447=31.9%????????????????????30%??
2. ?μ??????????????
???????????????????????????????????????????????????????????????5%?????????Χ??仯
??????????????????????????????????????????????
???????л????????????????????5%??
??????????????????????????????
?????·??
??δ?????????????????????????????????????????????????????
???????????530??????????????????Χ????503-557;
???????????580??????????????????Χ????551-609;
???????????????????????????С?ж???Χ??
???????????????611??????????????????Χ????580-640;
???????????????573??????????????????Χ????544-602;
?????????530???573?????????????????????????????????544??????573???????????544??????530???????Χ??503-557??
????????????573??????????????????????????544-557??????????????????????????Χ??
??????????????????ж????????Χ??????????????????????????568????????????Χ 540-597.
???????????????12345?????????12345????????仯??
????????·????????????????????
1. ????????????????????568?????????568???Χ??540-597????????Χ??503-557???????568???????????????540-557.
2. ???????1?????????Χ??551-609????611?????????611???????Χ??580-640?????????????????580-609. ??611???????????????????????????????????????600????, 611?????????590??????
3. 573???????????544-580??????????????????????????????????????λ??
???????????????С??609(1???????????)??????????????????2???611?????????585?????????????????585??????????????????????3λ?? 573??????573???????Χ??544-580.
?????????????????? 541?????609(1????????????????????????????),???? 11.4%??????????????????
?????????: ???? 600?? 611???????590??573???? ???570??????550,568???? 545???????????????????550??570+??
570/550=3.6%??
??????????????????????????????????о??????????????5%??
??????￡?
1. ?????????? ????????x20??????????????????x2??
2. ????????????????????x30??.
3. ?????????????30%??????????5%?????
????????????????40407?λ??????????????http://audiogearreviews.com/shouyou/mhxy/
