Listed below are the lengths (in minutes) of randomly selected CDs of country, rock, and movie soundtracks. Construct a 94% confidence interval for the mean length of all such CDs. Construct a 94% confidence interval for the mean length of all such CDs. Use MINITAB to find mean and standard deviation.
62.28 56.13 54.03 20.37 56.13 54.08 29.01 58.02 74.14 54.08
50.16 52.15 53.15 47.42 49.19 51.15 49.63 52.00 61.57 57.06
75.12 32.04 32.57 60.41 32.07 37.06 62.06 39.29 33.15 51.37
50.97 52.07 43.16 38.48 73.23 36.26 39.57 69.71 49.22 48.19