In: Statistics and Probability
Chapter 12 ANOVA | ||||
Ho: | The means are all equal | |||
H1: | The means are not all equal | |||
Samples: | 2 wks | 4 wks | 8 wks | |
118 | 130 | 126 | ||
126 | 120 | 136 | ||
126 | 114 | 128 | ||
120 | 126 | 146 | ||
129 | 128 | 140 | ||
Sample count | ||||
Sample Means | ||||
Sample Variances | ||||
Alpha | 0.05 | |||
Total sample count | ||||
Grand mean | ||||
Var between groups | ||||
Var within groups | ||||
F-statistic | ||||
P-value | ||||
Conclusion: | ||||
H0 : The means are all equal.
H1 : The means are not all equal.
F(2,12) at 0.05 level of significance
=3.8853
As calculated F=4.9655>3.8853
So, H0 is rejected, Hence there is significant differentiating
between samples and the means are not all equal.