Table 1:

Summary statistics table

	Mean	95% CI	Variance	SD	RSD	SEM	Median	95% CI	Minimum	Maximum	2.5–97.5 P	5–95 P	Normal Distr.
OBS 1 first	1.23	1.158–1.292	0.0853	0.292	0.238	0.034	1.28	1.117–1.360	0.67	1.83	.720–1.712	.732–1.665	0.251
OBS 1 second	1.28	1.212–1.342	0.0793	0.282	0.221	0.033	1.32	1.227–1.423	0.72	2.09	.739–1.811	0.828–1.708	0.883
OBS 2 first	1.21	1.145–1.273	0.0783	0.28	0.232	0.032	1.23	1.132–1.320	0.61	1.87	.650–1.768	.726–1.679	0.692
OBS 2 second	1.19	1.126–1.243	0.0647	0.254	0.215	0.029	1.22	1.113–1.320	0.65	1.8	.684–1.689	.757–1.623	0.636
OBS 3 first	1.21	1.134–1.279	0.0989	0.315	0.261	0.036	1.21	1.107–1.340	0.45	1.89	.632–1.810	.720–1.670	0.478
OBS 3 second	1.2	1.130–1.261	0.0809	0.285	0.238	0.033	1.21	1.090–1.320	0.54	1.87	.629–1.761	.690–1.575	0.632
OBS 4 first	1.24	1.182–1.305	0.0709	0.266	0.214	0.031	1.32	1.194–1.413	0.66	1.69	.760–1.639	.770–1.602	0.092
OBS 4 second	1.25	1.179–1.311	0.0825	0.287	0.231	0.033	1.26	1.147–1.323	0.65	1.83	.708–1.769	.760–1.717	0.36

Note:—OBS indicates observer; RSD, relative standard deviation; SEM = standard error of the mean; CI, confidence interval; Distr., distribution.