Consider a normal population with an unknown population standard deviation. A random sample results inx = 61.32 and s² = 12.96. [You may find it useful to reference the t table.] a. Compute the 99% confidence interval for ifx and s² were obtained from a sample of 21 observations. (Round final answer to 2 decimal places.)

b. Compute the 99% confidence interval for ifx and s² were obtained from a sample of 29 observations.