5 Enc'l The following is a simple random sample of vehicle speed on 1465 during the morning rush hour. 51 37 58 52 57 32 49 51 41 65 '75 63 4'7 58 65 74 We are 95% condent that the mean speed of all vehicles during the morning rush hour is between _ and _ mph. (Note: Use the Excel functions to compute the mean and standard deviation. Otherwise, you'd be wasting your time.) 49.0 52.3 55.7 60.4 44.6 47.9 51.3 56.0 61 63 '74 46 52 63 53 68 62 '74 51 32 49 63 56 44 53 38 6D 58 55 46 41 5D 59 51 53 44 56 3 1 68 32 32 63 '74 48 34 43 69 '75 '74 59 3 1 54 49 66 59 66 3'7 63 54 33 52 '73 35 4'7 44 41 32 56 58 46 '75 53 '70 58 '72 '75 59 48 31 62 '71 52 42 51 45 '72 36 49 3'7 50 30 60 66 66 64 36 69 41 39 55 60 32 72 42 52 4D 54 63 49 65 '72 39 '73 61 58 3'7 '73 62 3D 40 42 66 39 63 65 '75 '73 33 3D 6D 33 62 45 39 '73 5'7