The standard deviation of the weights of elephants is known to be approximately 15 pounds. We wish to construct a 95% confidence interval for the mean weight of newborn elephant calves. Fifty newborn elephants are weighed. The sample mean is 244 pounds. The sample standard deviation is 11 pounds. Construct a 95% confidence interval for the population mean weight of newborn elephants. State the confidence interval. (Round your answers to two decimal places.) X x Enter a number. ...: Sketch the graph. (Round your answers to two decimal places.) CL = 0.95 X X 244 X Calculate the error bound. (Round your answer to two decimal places.) X Additional Materials Reading