In: Statistics and Probability
| 
 Constant Sound  | 
 Random Sound  | 
 No Sound  | 
 Subject’s Gender  | 
| 
 7  | 
 5  | 
 2  | 
 M  | 
| 
 4  | 
 5  | 
 2  | 
 M  | 
| 
 6  | 
 3  | 
 3  | 
 F  | 
| 
 8  | 
 4  | 
 1  | 
 M  | 
| 
 6  | 
 4  | 
 2  | 
 F  | 
| 
 6  | 
 7  | 
 1  | 
 F  | 
| 
 2  | 
 2  | 
 4  | 
 F  | 
| 
 9  | 
 2  | 
 4  | 
 M  | 
If each subject participated in all the three conditions, and we now know about the gender of the subjects too.
Could you write down the test statistics for the gender variable?
.
.
What is the p-value of the gender variable?
.
.
What is the degree of freedom of the test statistics of the interaction effect?
If we denote them in terms of F(x, y), what is x?
.
.
What is y?
| Anova: Two-Factor With Replication | ||||||
| SUMMARY | Constant Sound | Random Sound | No Sound | Total | ||
| M | ||||||
| Count | 4 | 4 | 4 | 12 | ||
| Sum | 28 | 16 | 9 | 53 | ||
| Average | 7 | 4 | 2.25 | 4.416667 | ||
| Variance | 4.666667 | 2 | 1.583333 | 6.44697 | ||
| F | ||||||
| Count | 4 | 4 | 4 | 12 | ||
| Sum | 20 | 16 | 10 | 46 | ||
| Average | 5 | 4 | 2.5 | 3.833333 | ||
| Variance | 4 | 4.666667 | 1.666667 | 3.969697 | ||
| Total | ||||||
| Count | 8 | 8 | 8 | |||
| Sum | 48 | 32 | 19 | |||
| Average | 6 | 4 | 2.375 | |||
| Variance | 4.857143 | 2.857143 | 1.410714 | |||
| ANOVA | ||||||
| Source of Variation | SS | df | MS | F | P-value | F crit | 
| Sample | 2.041667 | 1 | 2.041667 | 0.659193 | 0.427452 | 4.413873 | 
| Columns | 52.75 | 2 | 26.375 | 8.515695 | 0.002497 | 3.554557 | 
| Interaction | 6.083333 | 2 | 3.041667 | 0.982063 | 0.393731 | 3.554557 | 
| Within | 55.75 | 18 | 3.097222 | |||
| Total | 116.625 | 23 | 
test stat for gender variable = 0.659
p value = 0.427452
df for the test statistics of the interaction effect=2
x=2, y=18