Suppose that textbook weights are normally distributed. You measure 22 textbooks' weights, and find they have a mean weight of 47 ounces. Assume the population standard deviation is 10.9 ounces. Based...

Extracted text: Suppose that textbook weights are normally distributed. You measure 22 textbooks' weights, and find they have a mean weight of 47 ounces. Assume the population standard deviation is 10.9 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight. Round answers to 2 decimal places. < select="" an="">