下面的數(shù)據(jù)文件顯示了在美國匹茲堡大學(xué)30名MBA考生的信息。第一列給出身高(英寸),第二列給出MBA剛剛就業(yè)后的月收入(數(shù)據(jù)來源于華爾街日報,12月30日)
當(dāng)身高=65英寸,計算初始月收入是多少?解釋回歸系數(shù)的實際意義。您可能感興趣的試卷
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Descriptive statistics deals with methods of()
某企業(yè)2018年技術(shù)工占50%,2019年新招收了一批學(xué)徒工,使學(xué)徒工的比重增加了10%。假定全廠各級工資水平均無變化,則2019年職工總平均工資將()
在組距數(shù)列中,下限就是()
Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). Personnel records of 50 employees are selected for analysis. (The plant employs 250.) For this study, the average number days absent for these 50 employees is a ().
最能反映離散程度的指標(biāo)是()
對全國各鐵路交通樞紐的貨運(yùn)量、貨物種類等進(jìn)行調(diào)查,以了解全國鐵路貨運(yùn)概況。這種調(diào)查屬于()
某廠某年職工勞動生產(chǎn)率為20000元,是歷史最高水平的1.2倍。這里的1.2倍是()
A summary measure that is computed from a sample to describe a characteristic of the population is called()
Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). The average number of absences per employee, calculated from the personnel data of all employees, is a ().
品合格率指標(biāo)是()