A study of hypoxemia during the immediate post-operative period reported the fractions of ideal weight for 11 patients who became severely hypoxemic during transfer to the recovery room. The mean is 1.51 and the standard deviation is 0.33. Estimate the 95% C.I. for the population mean fraction of ideal weight, where the population consists of hypoxemic patients similar to those in the study (The data is normally distributed, use =0.05)