Question The lengths, in inches, of adult corn snakes are normally distributed with a population standard deviation of 8 inches and an unknown population mean. A random sample of 25 snakes is taken and results in a sample mean of 58 inches. Identify the parameters needed to calculate a confidence interval at the 99% confidence level. Then find the confidence interval. 20.10 20.05 20.025 20.01 20.005 1.282 1.645 1.960 2.326 2.576 You may use a calculator or the common z values above. . Round the final answer to two decimal places.