H0:???????3??????????

1
???????

• ?????
• ????? 94110331
• ??? 94110342
• ??? 94110344
• ??? 94110346
• ??? 94110358

2
?????????
? ? ? ? ? ? ?
??? 12 11 16 10 20 30 17
??? 2 1 1 3 4 4 2
??? 2 2 1 1 3 6 1
??? 1 3 3 1 2 2 2
?G? 8 10 14 7 9 13 12
??? 4 6 5 9 8 10 8
???? 6 3 3 4 6 7 5
??? 2 5 4 2 3 1 2
??? 3 2 5 1 5 3 1
??? 2 2 1 2 4 2 3
3
??

• ???????????3????????, ????9????????, ???
  6?67????????????? ??? ?????

4
????????
??? ??? ???
????67 ??G?34 ????9
????10 ????26 ????9
????10 ?????18
????6
Xbar123.25 Xbar226 Xbar39
bar19.42 bar19.42 bar19.42
5

• ?0.05??????, ???????????????????????
• H0???????3??????????
• H1???????3??????????
• SSt (xi-Xbar)2(67-19.42)2(10-19.42)2(10-19.42
  )2(6-19.42)2(34-19.42)2
• (26-19.42)2(18-19.42)2(9-19.42)2(9-19.42)2
  3096.5

6

• SSb Sni(Xbar j- Xbar) 24(23.25-19.42) 2
  3(26-19.42) 2 2(9-19.42) 2405.72
• SSw SSt-SSb3096.5-405.722690.78
• dfbk-13-12
• dfwn-k9-36
• dftn-19-18

7

• MSbSSb dfb 405.72 2 202.86
• MSw SSw dfw 2690.78 6 448.46
• F MSb MSw 202.86 448.46 0.45
• F0.05(2,6)5.14

8
ANOVA ???
???? SS df MS F
????b 405.72 2 202.86 0.45 ????w 2690.78 6 448.46 ???t 3096.5 8
0.45ltF0.05(2,6)5.14 ??H0,???????? ?????????3?
?????????????