-' ED I ' v. ,, myopenmathcom O , ' N W ' iii 5' 3 0/1 pt '0 5 3 4 Details 0 Question 7 v Suppose that textbook weights are normally distributed. You measure 48 textbooks' weights, and find they have a mean weight of 53 ounces. Assume the population standard deviation is 13.3 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight. Round answers to 2 decimal places. C]