4 X Cost Passengers 1 1 5.07 85 2 2 5.11 80 3 3 3.84 81...

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4 X Cost Passengers 1 1 5.07 85 2 2 5.11 80 3 3 3.84 81 4 4 5.10 71 5 5 0.83 57 6 6 7.05 93 7 7 5.84 87 8 8 2.56 80 9 9 0.08 72 10 10 4.38 91 11 11 3.85 84 12 12 3.04 79 13 13 9.80 94 14 14 5.76 85 15 15 -2.32 53 16 16 1.85 70 17 17 1.02 64 18 18 3.23 67 4 X 27 Cost Passengers 1.34 UT 18 18 3.23 67 19 19 8.59 89 20 20 3.65 85 21 21 8.57 100 22 22 0.35 57 23 23 2.84 71 24 24 6.40 77 25 25 3.42 70 26 26 -0.29 72 27 27 -0.24 62 28 28 3.01 81 29 29 1.92 62 30 30 9.05 99 31 31 2.98 70 32 32 4.12 91 33 33 9.59 102 8 34 34 6.51 98 2 9 35 35 6.01 85 -1 36 36 1.43 80 (i) With 95% confidence, find the average cost of flying a commercial flight using Boeing 737s when the number of passengers is 70. Lower Bound = (use three decimals in your answer) Upper Bound = (use three decimals in your answer) 4 X Cost Passengers 1 1 5.07 85 2 2 5.11 80 3 3 3.84 81 4 4 5.10 71 5 5 0.83 57 6 6 7.05 93 7 7 5.84 87 8 8 2.56 80 9 9 0.08 72 10 10 4.38 91 11 11 3.85 84 12 12 3.04 79 13 13 9.80 94 14 14 5.76 85 15 15 -2.32 53 16 16 1.85 70 17 17 1.02 64 18 18 3.23 67 4 X 27 Cost Passengers 1.34 UT 18 18 3.23 67 19 19 8.59 89 20 20 3.65 85 21 21 8.57 100 22 22 0.35 57 23 23 2.84 71 24 24 6.40 77 25 25 3.42 70 26 26 -0.29 72 27 27 -0.24 62 28 28 3.01 81 29 29 1.92 62 30 30 9.05 99 31 31 2.98 70 32 32 4.12 91 33 33 9.59 102 8 34 34 6.51 98 2 9 35 35 6.01 85 -1 36 36 1.43 80 (i) With 95% confidence, find the average cost of flying a commercial flight using Boeing 737s when the number of passengers is 70. Lower Bound = (use three decimals in your answer) Upper Bound = (use three decimals in your answer)