请问高手,以下的SAS结果是怎样解释的:
The NPAR1WAY Procedure
Wilcoxon Scores (Rank Sums) for Variable x
Classified by Variable c
Sum of Expected Std Dev Mean
c N Scores Under H0 Under H0 Score
-----------------------------------------------------------------
1 10 141.50 115.0 15.161469 14.150000
2 12 111.50 138.0 15.161469 9.291667
Average scores were used for ties.
Wilcoxon Two-Sample Test
Statistic 141.5000
Normal Approximation
Z 1.7149
One-Sided Pr > Z 0.0432
Two-Sided Pr > |Z| 0.0864
t Approximation
One-Sided Pr > Z 0.0505
Two-Sided Pr > |Z| 0.1011
Z includes a continuity correction of 0.5.
Kruskal-Wallis Test
Chi-Square 3.0550
DF 1
Pr > Chi-Square 0.0805
“Normal Approximation Z t Approximation” 各表示什么意思,
“Z includes a continuity correction of 0.5.” 这句话是什么意思,
以上结果到底要看那一个值 (假设为双侧,以下3个) Z 1.7149
One-Sided Pr > Z 0.0432
Two-Sided Pr > |Z| 0.0864
t Approximation
One-Sided Pr > Z 0.0505
Two-Sided Pr > |Z| 0.1011
或者
Kruskal-Wallis Test
Chi-Square 3.0550
DF 1
Pr > Chi-Square 0.0805
谢谢高手指点!