The Distribution of Total Body Protein in Adult Men with Liver

Multiple Choice

The distribution of total body protein in adult men with liver cirrhosis is approximately Normal, with standard deviation σ= 0.1 kg. Researchers found that the mean total body protein x̄ of a random sample of 67 adult men with liver cirrhosis is 10.3 kg. Based on these data, what is the margin of error for a 95% confidence interval for μ?

A) 0.003 kg
B) 0.006 kg
C) 0.024 kg
D) 0.048 kg