Some Parameters of the Population Biology of Spotted Flounder

2.     The article “Some Parameters of the Population Biology of Spotted Flounder (Ciutharus linguatula Linnaeus, 1758) in Edremit Bay (North Aegean Sea)” (D. Tu¨rker, B. Bayhan, et al., Turkish Journal of Veteri- nary and Animal Science,2005:1013–1018) reports that a sample of 87 one-year-old spotted flounder had an average length of 126.31 mm with a standard devi- ation of 18.10 mm, and a sample of 132 two-year-old spotted flounder had an average length of 162.41 mm with a standard deviation of 28.49 mm. Find a 95% confidence interval for the mean length increase between one- and two-year-old spotted flounder.