TABLE 5.

Endotoxin concentration data from the swine barns studied using analysis of variance for repeated measures^a

Source of variation	dF	SS	MS	F	P
Grand mean	1	2,914.85	2,914.9	2,641.36	<0.0001
Between groups
Barnb	6	10.58	1.764	1.60	0.29
Sampler	1	0.1275	0.1275	0.12	0.75
Residual	6	6.6213	1.1035
Within groups
Replicate	2	0.6357	0.3178	2.04	0.17
Rep∗ barn	12	3.7876	0.3156	2.03	0.12
Rep∗ sampler	2	0.1312	0.0656	0.42	0.67
Residual	12	1.8696	0.1558
Total	42	2,938.61

^aTerms are as defined for Table 4. Shown are the results of a reduced model. The interaction between barn and sampler was not significant and was eliminated from the full model. 

^bBarn, barn number.