数据统计分析实验指导书(3)

在Case Processing Summary 表中可以看出female 有216个个体，Male258个个体，均无缺失值。

（2）Descriptives 表

Current Salary

Gender Female

Mean

95% Confidence Lower Bound Interval for Mean Upper Bound 5% Trimmed Mean Median Variance Std. Deviation Minimum Maximum Range

Interquartile Range Skewness Kurtosis

Male

Mean

95% Confidence Lower Bound Interval for Mean Upper Bound 5% Trimmed Mean Median Variance Std. Deviation Minimum Maximum Range

Interquartile Range Skewness Kurtosis

Descriptives

Statistic $26,031.92 $25,018.29 $27,045.55 $25,248.30 $24,300.00 57123688.2

68

$7,558.021

$15,750 $58,125 $42,375 $7,013 1.863 4.641 $41,441.78 $39,051.19 $43,832.37 $39,445.87 $32,850.00 380219336.

303

$19,499.214

$19,650 $135,000 $115,350 $22,675 1.639 2.780

Std. Error $514.258

.166 .330 $1,213.96

8 .152 .302

（3）职位员工薪水直方图显示

11

Histogramfor gender= Female4030Frequency20100$20,000$30,000$40,000$50,000Mean = $26,031.92Std. Dev. = $7,558.021N = 216$60,000Current Salary （4）茎叶图描述

茎叶图自左向右可以分为3 大部分：频数（Frequency）、茎（Stem）和叶（Leaf）。茎表示数值的整数部分，叶表示数值的小数部分。每行的茎和每个叶组成的数字相加再乘以茎宽（Stem Width），即茎叶所表示的实际数值的近似值。

Current Salary Stem-and-Leaf Plot for gender= Female

Frequency Stem & Leaf

2.00 1 . 55

16.00 1 . 6666666666777777 14.00 1 . 88889999999999

31.00 2 . 0000000000000111111111111111111 35.00 2 . 22222222222222222222233333333333333 38.00 2 . 44444444444444444444444444555555555555 22.00 2 . 6666666666677777777777 17.00 2 . 88888899999999999 7.00 3 . 0001111 8.00 3 . 22233333 8.00 3 . 44444555 5.00 3 . 66777 2.00 3 . 88

11.00 Extremes (>=40800)

12

Stem width: 10000 Each leaf: 1 case(s)

（5）箱图

$140,00029$120,00032343$100,00018446Current Salary$80,00010345410634431$60,000$40,00034837146824016841380242277134$20,000$0FemaleMaleGender 图中灰色区域的方箱为箱图的主体，上中下3 条线分别表示变量值的第75、50、25百分位数，因此变量的50%观察值落在这一区域中。