問答題

弗萊兄弟暖氣空調(diào)公司,雇傭了Larry Clark 和George Murnen 兩位員工從事客服工作,公司經(jīng)理Tom Fry對他們每日接到的電話進(jìn)行了統(tǒng)計(jì)。對α=0.05,檢驗(yàn)平均接到的電話數(shù)是否有差異。


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