OneFactor ANOVA Partitions of Total Variation SST Variation

One-Factor ANOVA Partitions of Total Variation SST Variation Due to Treatment SSB s Commonly referred to as: o Sum of Squares Among, or o Sum of Squares Between, or o Sum of Squares Model, or o Among Groups Variation = + Variation Due to Random Sampling SSW s Commonly referred to as: o Sum of Squares Within, or o Sum of Squares Error, or o Within Groups Variation Sunday,

均方(mean square，MS) Sunday,

均方之比＝F value Sunday,

F 界值表 附表 4 F界� 表（方差分析用，�� 界� ） 上行：P=0. 05 下行：P=0. 01 分子的自由度，υ1 分母自由度 υ2 1 2 25 1 2 3 4 5 6 161 200 216 225 230 234 4052 4999 5403 5625 5764 5859 18. 51 19. 00 19. 16 19. 25 19. 30 19. 33 98. 49 99. 00 99. 17 99. 25 99. 30 99. 33 4. 24 3. 39 2. 99 2. 76 2. 60 2. 49 7. 77 5. 57 4. 68 4. 18 3. 85 3. 63 Sunday,

二、方差分析的步骤 H 0: m 1 = m 2 = m 3 =. . . = mk m 1 = m 2 = m 3 H 1: not all the mi are equal m 1 = m 2 m 3 m 1 m 2 m 3 Sunday,