医学统计学第3章-定量的统计描述.ppt

例3-6. 测定7名成年男性红细胞数（1012 /L） ：3.83，4.25，4.58，4.83，5.17，5.60，5.95 例3-7. 测得某市某大学8名正常女子总胆固醇（mmol/L）：2.58，3.02，3.41，3.87， 4.25，4.73，5.13，5.71 data li3_2; input x@@; cards; 105.4 113.2 118.7 119.0 107.0 106.8 114.2 101.2 114.9 114.1 119.5 104.3 113.3 112.2 110.7 112.7 110.8 115.6 109.2 116.0 105.7 127.8 115.8 118.5 115.7 116.7 110.3 118.0 113.0 118.5 105.8 118.9 124.0 117.5 123.1 113.7 124.1 125.3 117.8 108.7 106.2 103.8 122.6 104.0 126.5 116.0 117.5 110.3 120.1 113.2 123.4 112.4 115.0 128.1 110.9 125.1 114.4 110.2 112.0 116.4 108.3 110.9 120.4 108.2 121.2 112.3 121.8 117.0 111.4 117.2 113.9 116.1 114.4 118.8 116.1 108.4 114.5 109.0 116.8 110.8 119.8 114.1 118.8 116.7 113.4 122.2 118.1 121.2 114.0 116.7 112.3 121.1 116.5 110.3 119.1 118.4 106.3 115.3 121.0 107.5 112.8 121.6 119.2 113.5 112.5 123.1 116.6 129.5 112.3 126.8 122.8 121.1 124.6 125.7 122.5 121.0 124.4 120.9 111.3 112.5 ; proc univariate normal; run; The SAS System 10:33 Friday, September 9, 2012 3 The UNIVARIATE Procedure Variable: x Moments N 120 Sum Weights 120 Mean 115.756667 Sum Observations 13890.8 Std Deviation 5 Variance 35.3199552 Skewness -0.0120427 Kurtosis -0.4261725 Uncorrected SS 1612155.78 Corrected SS 4203.07467 Coeff Variation 5 Std Error Mean 0 Basic Statistical Measures Location Variability Mean