數學 ANOVA 問題 求幫助!!!

(a)
睇 degree of freedom

Between group 係 k - 1
Within group 係 n - k

Total 係 n - 1

所以 n - 1 = 27

n = 28

28 adults were studied in the experiment.

2014-11-30 15:17:44 補充：
(c)
Excel 計出 p-value 是
=1-F.DIST(2.13,3,24,TRUE) = 0.122864168

(d)
由於 p-value > 0.05

Null hypothesis 不能被 rejected at the 0.05 sig. level

(b)
要睇番公式, 暫時唔得閒答你住。

2014-12-02 18:51:27 補充：
(b) 因為你 assume 左 common variance，所以

unbiased estimate of σ² 就是 MSE，即是 6.1

2014-12-04 03:46:25 補充：
(a)
睇 degree of freedom

Between group 係 k - 1
Within group 係 n - k

Total 係 n - 1
所以 n - 1 = 27
n = 28

28 adults were studied in the experiment.


(b) 因為你 assume 左 common variance，所以
unbiased estimate of σ² 就是 MSE，即是 6.1


(c)
Excel 計出 p-value 是
=1-F.DIST(2.13,3,24,TRUE) = 0.122864168


(d)
由於 p-value > 0.05

Null hypothesis 不能被 rejected at the 0.05 sig. level