I'm a little confused as to how to get the upper and lower bounds for data set 3. Do I round the sample standard deviation to 4 or 5 decimals?

9.2.45 Question The following data sets represent simple random samples from a population whose mean is 100. Complete parts (a) through (e) below. X = 99.267 Full data set (Round to three decimal places as needed.) Data Set I 106 120 92 125 89 77 80 110 (b) For each data set, construct a 95% confidence interval about the population mean Data Set II Construct a 95% confidence interval for data set I. 106 120 92 125 89 77 80 110 86 88 110 86 114 112 99 99 120 The lower bound is 84.80 83 85 104 Data Set Ill The upper bound is 114.95. 106 120 92 (Round to two decimal places as needed.) 125 89 77 80 110 86 88 110 86 114 112 99 120 99 Construct a 95% confidence interval for data set II. 83 85 104 90 110 118 89 101 80 88 109 90 118 The lower bound is 92.32 The upper bound is 106.18. (Round to two decimal places as needed.) Construct a 95% confidence interval for data set III. The lower bound is The upper bound is (Round to two decimal places as needed.) Enter your answer in the edit fields and then click Check Answer. 6 parts remaining Clear All Check