sas eIntelligence 多组均数两两比较结果(SNK) Apha=0.05df=16MSE=0251823 Number of means 2 Critica| Range06728120818941209080258 Means with the same letter are not significantly different. SNK Grouping Mean N c 4.028054 ABBBBB 2.968053 2.464051 2.412052 The power to know多组均数两两比较结果（SNK） Alpha= 0.05 df= 16 MSE= 0.251823 Number of Means 2 3 4 Critical Range 0.672812 0.8189412 0.9080258 Means with the same letter are not significantly different. SNK Grouping Mean N C A 4.0280 5 4 B 2.9680 5 3 B B 2.4640 5 1 B B 2.4120 5 2