单项选择题
A.organising data. B.summarising data C.presenting data in a convenient and informative way D.doing all of the above
Simon Arnett, Director of Human Resources, is exploring...
单项选择题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 （）.
A.population B.sample C.parameter D.statistic
A summary measure that is computed from a sample to des...
单项选择题A summary measure that is computed from a sample to describe a characteristic of the population is called（）
A.a parameter B.a statistic C.a population D.Both A and C are correct，since they are the same
单项选择题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 （）.
