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. Question 10 You measure 37 textbooks' weights, and find they have a mean weight of 30 ounces. Assume the population standard deviation is 7.3 ounces. Based on this, construct a 99% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places. Question 11 Express the confidence interval (35.9 % , 49.5 % ) in the form of p + ME.. Question 12 > Express the confidence interval 61.3 % + 8.6% in interval form. Enter in interval notation. Do not enter as a percent.I Question 6 v Assume that a sample is used to estimate a population mean . Find the 90% confidence interval for a sample of size 1028 with a mean of 43.1 and a standard deviation of 16.4. Enter your answer accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places