Open AccessResearch on the Difference Significance of Test Score by SAS
Author(s) -
Huameng Gao,
Yongqi Xue,
Sun Yu,
Wang Jing
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1549/5/052096
Subject(s) - wilcoxon signed rank test , statistics , test (biology) , sign test , univariate , mathematics , rank (graph theory) , sort , mann–whitney u test , arithmetic , multivariate statistics , combinatorics , paleontology , biology
In order to research the significancy level and difference in different groups of test score data, the way for checking data’s normal character is introduced. In order to realizing variance analysis, t test and Wilcoxon test, the SAS function, such as SORT, UNIVARIATE NORMAL, TTEST COCHRAN and NPAR1WAY WILCOXON are presented. According to real data, the distribution histgraph, X 2 values, normal test, signed-rank test, and Wilcoxon two-sample test are gained. The study in this paper can be adopted in other fields of test design and data analysis.