Homework 1-21 - Year 1974 1974 1974 1974 1974 1974 1974...

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Year Month Crude Wells 1974 1 6.95 56 After looking at the data for every year I was not able to n 1974 2 6.87 54 drilled. However if you just look at half of the data from 1 1974 3 6.77 70 The variance is also .7776 which is very close to 1 which 1974 4 6.77 61 1974 5 6.87 77 1974 6 6.85 88 1974 7 6.8 80 1974 8 6.71 81 1974 9 6.7 63 1974 10 6.97 85 1974 11 6.97 65 1974 12 7.09 79 1975 1 7.61 84 1975 2 7.47 81 1975 3 7.57 94 1975 4 7.55 83 1975 5 7.52 85 1975 6 7.49 80 1975 7 7.75 81 1975 8 7.73 93 1975 9 7.75 69 1975 10 7.83 90 1975 11 7.8 69 1975 12 7.93 73 1976 1 8.63 92 1976 2 7.91 100 When looking at the data after 1988 there is not even a p 1976 3 7.78 90 the correlation is -.8412 which is slightly negative. 1976 4 7.86 79 1976 5 7.89 84 1976 6 8 90 1976 7 8.04 84 1976 8 8.03 105 1976 9 8.39 92 1976 10 8.46 78 1976 11 8.61 104 1976 12 8.62 88 1977 1 8.5 110 1977 2 8.56 95 1977 3 8.45 92 1977 4 8.41 97 1977 5 8.49 103 1977 6 8.44 106 1977 7 8.47 77 1977 8 8.45 100 1977 9 8.43 94 1977 10 8.72 102 1977 11 8.69 107 1977 12 8.81 81 1978 1 8.71 81 1978 2 8.86 93 1978 3 8.8 88 After studying all these graphs it is safe to say that befor 1978 4 8.82 106 between the price of crude oil and the amount of wells dr 5 10 15 20 25 0 50 100 150 200 250 300 f(x) = 5.41x + 32.49 R² = 0.78 197 Price of Crude Oil Wells Drilled 5 10 15 20 2 0 10 20 30 40 50 60 70 80 f(x) = -0.84x + 50.44 R² = 0.09 1989- Price of Crude Oil Wells Drilled
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1978 5 8.81 115 to cause the two variables to lose their positive correlatio 1978 6 9.05 110 1978 7 8.96 99 1978 8 9.05 95 1978 9 9.15 95 1978 10 9.17 103 1978 11 9.2 96 1978 12 9.47 90 1979 1 9.46 83 1979 2 9.69 84 1979 3 9.83 113 1979 4 10.33 95 1979 5 10.71 78 1979 6 11.7 113 1979 7 13.39 118 1979 8 14 103 1979 9 14.57 127 1979 10 15.06 140 1979 11 15.52 131 1979 12 17 136 1980 1 17.86 139 1980 2 18.86 136 1980 3 19.33 143 1980 4 20.28 136 1980 5 21.05 128 1980 6 21.52 140 1980 7 22.31 134 1980 8 22.62 163 1980 9 22.59 168 1980 10 23.23 148 1980 11 23.99 147 1980 12 25.83 182 1981 1 28.81 220 1981 2 34.3 175 1981 3 34.59 209 1981 4 33.92 183 1981 5 32.73 223 1981 6 31.68 221 1981 7 31.1 236 1981 8 31.1 234 1981 9 31.1 221 1981 10 30.98 236 1981 11 30.97 224 1981 12 30.8 254 1982 1 30.86 247 1982 2 29.75 184 1982 3 28.3 265 1982 4 27.65 227 1982 5 27.67 182 1982 6 28.11 213 1982 7 28.35 171 1982 8 28.18 201 1982 9 27.96 184 5 10 15 20 25 0 50 100 150 200 250 300 f(x) = 3.04x + 26.23 R² = 0.14 1974-2 Price of Crude Oil Wells Drilled
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1982 10 28.75 202 1982 11 28.69 176 1982 12 28.04 179 1983 1 27.22 185 1983 2 26.41 170 1983 3 26.08 167 1983 4 25.85 172 1983 5 26.08 153 1983 6 25.98 156 1983 7 25.86 172 1983 8 26.03 172 1983 9 26.08 171 1983 10 26.04 198 1983 11 26.09 165 1983 12 25.88 142 1984 1 25.93 213 1984 2 26.06 195 1984 3 26.05 212 1984 4 25.93 149 1984 5 26 197 1984 6 26.09 187 1984 7 26.11 183 1984 8 26.02 183 1984 9 25.97 209 1984 10 25.92 150 1984 11 25.44 180 1984 12 25.05 140 1985 1 24.26 166 1985 2 23.64 164 1985 3 23.89 175 1985 4 24.19 125 1985 5 24.18 149 1985 6 24.07 119 1985 7 24.04 137 1985 8 23.99 166 1985 9 23.96 115 1985 10 24.1 132 1985 11 24.27 93 1985 12 24.51 138 1986 1 23.12 203 1986 2 17.65 142 1986 3 12.62 113 1986 4 10.68 108 1986 5 10.75 77 1986 6 10.68 68 1986 7 9.25 81 1986 8 9.77 58 1986 9 11.09 45 1986 10 11 52 1986 11 11.05 61 1986 12 11.73
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