An article in Nuclear Engineering International (February 1988, p.33) describes several characteristics of fuel rods used in a reactor owned by an electric utility in Norway. Measurements on the percentage of enrichment of 12 rods were reported as follows: 2.94 3.00 2.90 2.75 3.00 2.95 2.90 2.75 2.95 2.82 2.81 3.05 Construct a 99% interval estimate for the mean percentage of enrichment. Are you comfortable with the statement that the mean percentage of enrichment is 2.95%? Explain fully. Show all work for this problem!