Be 2.911 Question Help: Message instructor Question 5 5 pts 9 2 Assume that a sample is used to estimate a population mean . Find the 98% confidence interval for a sample of size 39 with a mean of 36.3 and a standard deviation of 18.4. Enter your answer as an open- interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). 98% 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