Chapter 7.2 Homework Score: 1/13 1/13 answered Question 10 You intend to estimate a population mean / with the following sample. 66.2 79.1 70.4 81.8 77.1 67.3 72.8 75.5 77 75.3 78.5 You believe the population is normally distributed. Find the 95% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported accurate to one decimal place). 95% C.I. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Question Help: Message instructor Submit