Fig. 2From: Assessing the precision of a time-sampling-based study among GPs: balancing sample size and measurement frequencyCI for one to 50 GPs and 50 to 500 GPs. The CI includes the weighted sample fluctuation and measurement fluctuation which is based on the equations and simulations on the data and is described in the “Methods” section. CI = one-sided 95% confidence interval, hours above or below the meanBack to article page