36. Bellomo et al. (A-36) conducted a study to quantitate insulin losses and glucose absorption during acute continuous hemofiltration with dialysis and to assess the clinical importance of these changes. Subjects were 16 ICU patients with acute renal failure at a university medical center. The authors conclude that significant glucose absorption occurs during acute continuous hemofiltration with dialysis and is coupled with minor insulin losses through the filter. What was the target population? The sampled population?

As part of their analysis, the authors constructed confidence intervals for several means. Based on the information given here, what is the appropriate numerical value of the reliability factor for the intervals?