Table 6

Analysis of variance for the accident and emergency unit data

Source of variation
Degrees of freedom
Sum of squares
Mean square
F
P

Regression
1
1.462
1.462
11.24
0.004
Residual
18
2.342
0.130


Total
19
3.804




Bewick et al. Critical Care 2003 7:451   doi:10.1186/cc2401