问题标题：
英语翻译Themanagerofasupermarketwantstoobtaininformationabouttheproportionofcustomerswhodislikeanewpolicyoncashingchecks.Supposethetruepopulationproportionofcustomerswhodislikethenewpolicyis0.5.a)Ifthemanager
问题描述：
英语翻译
Themanagerofasupermarketwantstoobtaininformationabouttheproportionofcustomerswhodislikeanewpolicyoncashingchecks.Supposethetruepopulationproportionofcustomerswhodislikethenewpolicyis0.5.
a)Ifthemanagersamples50customers,findtheprobabilitythatthesampleproportionwillbewithin0.15unitsofthetruepopulationproportion.
宋国正回答：
超市经理想要知道有多大比例的顾客不喜欢新实行的现金支票政策.假设实际上不喜欢新政策的顾客比例是0.5
a.经理选择的顾客标本是50人,问经理得出的顾客比例是实际顾客比例的0.15之内的概率是多少.
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