Question 6 Not yet answered Marked out of 1.00 \\V Flag question ll A firm investigates the length of telephone conversations of their office staff. Ten consecutive conversations had lengths, in minutes: 10.7, 9.5, 11.1, 7.8, 11.9, 4.1, 10.0, 9.2, 6.5, 9.2. Construct a 95% confidence interval using the empirical rule. (4, 13.6) (5, 10) (2. 7) (3. 9)