A 95% Confidence Interval for the Mean Lead Concentration in the Urine

Multiple Choice

A 95% confidence interval for the mean lead concentration in the urine of adult men working with lead (for smelting) is 8.22 to 11.98 micrograms per liter ( μ g/l) . Which of the following is the correct interpretation for this confidence interval?

A) We are 95% confident that the sample mean lead concentration is between 8.22 and 11.98 μ g/l.
B) We are 95% confident that the population mean lead concentration is between 8.22 and 11.98 μ g/l.
C) There is a 95% chance that the mean lead concentration of another random sample from this population would be between 8.22 and 11.98 μ g/l.
D) There is a 95% chance that a randomly selected man from this population would have a lead concentration between 8.22 and 11.98 μ g/l.