An article in the Austraian Journal of Agricultureal Research determined that the essential amino acid (Lysines) composition level of soybean meals is as shown here (g/kg): 20.2 24.9 22.5 26.5 27.0 24.5 26.0 23.5 25.4 24.0 (a) Constrict a 98% two-sided confidence interval for 2. (b) Construct a 99% lower confidence bound on for 2. (c) Calculate a 95% lower confidence bound for . (d) Compare the intervals that you computed in parts (a) and (b).