统计软件SPSS第六章报告解读.docx

统计分析软件实验报告姓名：学号：专业：统计学院系：统计学院指导教师: 完成日期：chapter 6 Chapter 6 Descriptive statisticsAdditional exercisesBusinessData file: staffsurvey.sav. See Appendix for details of the data file.1.Follow the procedures covered in this chapter to generate appropriate descriptive statisticsto answer the following questions:(a)What percentage of the staff in this organisation are permanent employees? (Usethe variable employstatus.)操作步骤：Analyze---Descriptive Statistics---Frequenciesemployment statusFrequencyPercentValid PercentCumulative PercentValidpermanent32861.262.862.819436.237.2100.0Total52297.4100.0MissingSystem142.6Total536100.0Table6--1在table6--1中可以看到在536名被调查者中，其中有14个人没有回答这个问题，有328名长期工，占样本总体的62.8%，有194名临时工，占样本总体的37.2%。(b)What is the average length of service for staff in the organisation? (Use the variable操作步骤：Analyze---Descriptive Statistics---Frequencies---MeanStatisticslength of serviceNValid471Missing65Mean5.03Table6--2在输出表6--2中可以看到剔除掉65个缺失值后，在471个有效个案中，员工的平均工作年限是5.03年。(c)What percentage of respondents would recommend the organisation to others as a good place to work (Use the variable recommend.)操作步骤：Analyze---Descriptive Statistics---FrequenciesrecommendFrequencyPercentValid PercentCumulative PercentValidno5810.810.810.8yes47789.089.2100.0Total53599.8100.0MissingSystem1.2Total536100.0Table6--3从输出表中我们可以看到在536个抽样总体中，剔除掉1个缺失值，在535个有效个案中，有477个员工的答案是yes，意思是有477个员工会给其他人推荐这个地方工作，占有效样本总体的89.2%，有58个员工的答案是no ,就是说有58个员工不会给其他人推荐这个工作，占有效样本总体的10.8。2.Assess the distribution of scores on the Total Staff Satisfaction scale (totsatis) foremployees who are permanent versus casual (employstatus).(a)Are there any outliers on this scale that you would be concerned about?Descriptivesemployment statusStatisticStd. ErrorrecommendpermanentMean.90.01795% Confidence Interval for MeanLower Bound.86Upper Bound.935% Trimmed Mean.94Median1.00Variance.093Std. Deviation.305Minimum0Maximum1Range1Interquartile Range0Skewness-2.612.135Kurtosis4.855.268casualMean.89.02395% Confidence Interval for MeanLowe