某紡織公司規(guī)定每位紡織工看800個(gè)錠子,抽查工人30次,每次1分鐘,共接頭50次。(t0.975(∞)=1.96) 每
2021-05-03
某紡織公司規(guī)定每位紡織工看800個(gè)錠子,抽查工人30次,每次1分鐘,共接頭50次。(t0.975(∞)=1.96)
每分鐘斷頭率p的置信度為95%的置信區(qū)間是( )。
A.[0.00150,0.00247]
B.[0.00150,0.00266]
C.[0.00175,0.00247]
D.[0.00175,0.00266]
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