hamster data frame Hiber Lifetime 1 0 116 2 0 612 3 0 711 4 0 744 5 0 760 6 0 579 7 0 562 8 0 545 9 0 496 10 0 364 11 0 314 12 1 826 13 1 975 14 1 893 15 1 826 16 1 727 17 1 678 18 1 579 19 1 430 20 2 826 21 2 860 22 2 1074 23 3 760 24 3 975 25 4 959 26 4 810 27 4 678 28 6 397 29 6 496 30 6 727 31 6 1058 32 8 876 33 8 975 34 9 975 35 9 711 36 9 678 37 9 446 38 10 579 39 10 694 40 10 810 41 11 1107 42 11 826 43 11 760 44 11 744 45 11 727 46 12 1207 47 12 1124 48 12 876 49 12 843 50 12 826 51 12 793 52 12 545 53 12 364 54 12 264 55 13 1289 56 13 1140 57 13 678 58 13 446 59 14 1289 60 14 1273 61 14 1157 62 14 1132 63 14 1124 64 14 1107 65 14 893 66 14 876 67 14 860 68 14 760 69 15 1107 70 15 843 71 15 760 72 15 711 73 15 512 74 16 1388 75 16 826 76 16 810 77 16 777 78 16 331 79 17 760 80 17 893 81 17 909 82 17 1289 83 18 1289 84 18 1207 85 18 1124 86 18 1058 87 18 1041 88 18 1008 89 18 909 90 18 860 91 18 562 92 19 545 93 19 1008 94 19 1174 95 19 1438 96 20 1256 97 20 1174 98 20 1140 99 20 1074 100 20 711 101 21 1223 102 21 1140 103 21 942 104 21 860 105 21 843 106 22 645 107 22 727 108 22 1107 109 23 1421 110 23 1306 111 23 1273 112 23 1256 113 23 1174 114 23 1074 115 23 1025 116 23 760 117 24 1587 118 24 1504 119 24 1289 120 24 1041 121 25 909 122 25 1190 123 25 1207 124 25 1256 125 25 1587 126 26 760 127 26 1091 128 27 1372 129 28 264 130 28 1107 131 28 1124 132 29 760 133 29 1107 134 29 1620 135 30 760 136 32 1355 Regression summary: Call: lm(formula = Lifetime ~ Hiber, data = hamster) Residuals: Min 1Q Median 3Q Max -895.93 -135.49 -12.96 187.46 500.94 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 642.854 43.129 14.905 < 2e-16 *** Hiber 18.467 2.593 7.123 5.84e-11 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 258 on 134 degrees of freedom Multiple R-squared: 0.2747, Adjusted R-squared: 0.2692 F-statistic: 50.74 on 1 and 134 DF, p-value: 5.843e-11 Confidence limits fit lwr upr 1 642.8544 557.5534 728.1554 2 642.8544 557.5534 728.1554 3 642.8544 557.5534 728.1554 4 642.8544 557.5534 728.1554 5 642.8544 557.5534 728.1554 6 642.8544 557.5534 728.1554 7 642.8544 557.5534 728.1554 8 642.8544 557.5534 728.1554 9 642.8544 557.5534 728.1554 10 642.8544 557.5534 728.1554 11 642.8544 557.5534 728.1554 12 661.3214 580.3788 742.2639 13 661.3214 580.3788 742.2639 14 661.3214 580.3788 742.2639 15 661.3214 580.3788 742.2639 16 661.3214 580.3788 742.2639 17 661.3214 580.3788 742.2639 18 661.3214 580.3788 742.2639 19 661.3214 580.3788 742.2639 20 679.7883 603.1091 756.4675 21 679.7883 603.1091 756.4675 22 679.7883 603.1091 756.4675 23 698.2552 625.7273 770.7832 24 698.2552 625.7273 770.7832 25 716.7222 648.2132 785.2312 26 716.7222 648.2132 785.2312 27 716.7222 648.2132 785.2312 28 753.6561 692.6840 814.6281 29 753.6561 692.6840 814.6281 30 753.6561 692.6840 814.6281 31 753.6561 692.6840 814.6281 32 790.5899 736.2573 844.9225 33 790.5899 736.2573 844.9225 34 809.0569 757.5969 860.5169 35 809.0569 757.5969 860.5169 36 809.0569 757.5969 860.5169 37 809.0569 757.5969 860.5169 38 827.5238 778.5666 876.4811 39 827.5238 778.5666 876.4811 40 827.5238 778.5666 876.4811 41 845.9908 799.1071 892.8744 42 845.9908 799.1071 892.8744 43 845.9908 799.1071 892.8744 44 845.9908 799.1071 892.8744 45 845.9908 799.1071 892.8744 46 864.4577 819.1596 909.7559 47 864.4577 819.1596 909.7559 48 864.4577 819.1596 909.7559 49 864.4577 819.1596 909.7559 50 864.4577 819.1596 909.7559 51 864.4577 819.1596 909.7559 52 864.4577 819.1596 909.7559 53 864.4577 819.1596 909.7559 54 864.4577 819.1596 909.7559 55 882.9246 838.6713 927.1780 56 882.9246 838.6713 927.1780 57 882.9246 838.6713 927.1780 58 882.9246 838.6713 927.1780 59 901.3916 857.6038 945.1794 60 901.3916 857.6038 945.1794 61 901.3916 857.6038 945.1794 62 901.3916 857.6038 945.1794 63 901.3916 857.6038 945.1794 64 901.3916 857.6038 945.1794 65 901.3916 857.6038 945.1794 66 901.3916 857.6038 945.1794 67 901.3916 857.6038 945.1794 68 901.3916 857.6038 945.1794 69 919.8585 875.9385 963.7786 70 919.8585 875.9385 963.7786 71 919.8585 875.9385 963.7786 72 919.8585 875.9385 963.7786 73 919.8585 875.9385 963.7786 74 938.3255 893.6807 982.9702 75 938.3255 893.6807 982.9702 76 938.3255 893.6807 982.9702 77 938.3255 893.6807 982.9702 78 938.3255 893.6807 982.9702 79 956.7924 910.8586 1002.7263 80 956.7924 910.8586 1002.7263 81 956.7924 910.8586 1002.7263 82 956.7924 910.8586 1002.7263 83 975.2594 927.5177 1023.0011 84 975.2594 927.5177 1023.0011 85 975.2594 927.5177 1023.0011 86 975.2594 927.5177 1023.0011 87 975.2594 927.5177 1023.0011 88 975.2594 927.5177 1023.0011 89 975.2594 927.5177 1023.0011 90 975.2594 927.5177 1023.0011 91 975.2594 927.5177 1023.0011 92 993.7263 943.7143 1043.7383 93 993.7263 943.7143 1043.7383 94 993.7263 943.7143 1043.7383 95 993.7263 943.7143 1043.7383 96 1012.1932 959.5081 1064.8784 97 1012.1932 959.5081 1064.8784 98 1012.1932 959.5081 1064.8784 99 1012.1932 959.5081 1064.8784 100 1012.1932 959.5081 1064.8784 101 1030.6602 974.9572 1086.3632 102 1030.6602 974.9572 1086.3632 103 1030.6602 974.9572 1086.3632 104 1030.6602 974.9572 1086.3632 105 1030.6602 974.9572 1086.3632 106 1049.1271 990.1143 1108.1399 107 1049.1271 990.1143 1108.1399 108 1049.1271 990.1143 1108.1399 109 1067.5941 1005.0259 1130.1622 110 1067.5941 1005.0259 1130.1622 111 1067.5941 1005.0259 1130.1622 112 1067.5941 1005.0259 1130.1622 113 1067.5941 1005.0259 1130.1622 114 1067.5941 1005.0259 1130.1622 115 1067.5941 1005.0259 1130.1622 116 1067.5941 1005.0259 1130.1622 117 1086.0610 1019.7313 1152.3907 118 1086.0610 1019.7313 1152.3907 119 1086.0610 1019.7313 1152.3907 120 1086.0610 1019.7313 1152.3907 121 1104.5279 1034.2637 1174.7922 122 1104.5279 1034.2637 1174.7922 123 1104.5279 1034.2637 1174.7922 124 1104.5279 1034.2637 1174.7922 125 1104.5279 1034.2637 1174.7922 126 1122.9949 1048.6505 1197.3392 127 1122.9949 1048.6505 1197.3392 128 1141.4618 1062.9145 1220.0092 129 1159.9288 1077.0742 1242.7833 130 1159.9288 1077.0742 1242.7833 131 1159.9288 1077.0742 1242.7833 132 1178.3957 1091.1452 1265.6462 133 1178.3957 1091.1452 1265.6462 134 1178.3957 1091.1452 1265.6462 135 1196.8626 1105.1402 1288.5851 136 1233.7965 1132.9429 1334.6502 Prediction limits: fit lwr upr 1 642.8544 125.3996 1160.309 2 642.8544 125.3996 1160.309 3 642.8544 125.3996 1160.309 4 642.8544 125.3996 1160.309 5 642.8544 125.3996 1160.309 6 642.8544 125.3996 1160.309 7 642.8544 125.3996 1160.309 8 642.8544 125.3996 1160.309 9 642.8544 125.3996 1160.309 10 642.8544 125.3996 1160.309 11 642.8544 125.3996 1160.309 12 661.3214 144.5671 1178.076 13 661.3214 144.5671 1178.076 14 661.3214 144.5671 1178.076 15 661.3214 144.5671 1178.076 16 661.3214 144.5671 1178.076 17 661.3214 144.5671 1178.076 18 661.3214 144.5671 1178.076 19 661.3214 144.5671 1178.076 20 679.7883 163.6847 1195.892 21 679.7883 163.6847 1195.892 22 679.7883 163.6847 1195.892 23 698.2552 182.7520 1213.758 24 698.2552 182.7520 1213.758 25 716.7222 201.7690 1231.675 26 716.7222 201.7690 1231.675 27 716.7222 201.7690 1231.675 28 753.6561 239.6514 1267.661 29 753.6561 239.6514 1267.661 30 753.6561 239.6514 1267.661 31 753.6561 239.6514 1267.661 32 790.5899 277.3305 1303.849 33 790.5899 277.3305 1303.849 34 809.0569 296.0936 1322.020 35 809.0569 296.0936 1322.020 36 809.0569 296.0936 1322.020 37 809.0569 296.0936 1322.020 38 827.5238 314.8055 1340.242 39 827.5238 314.8055 1340.242 40 827.5238 314.8055 1340.242 41 845.9908 333.4663 1358.515 42 845.9908 333.4663 1358.515 43 845.9908 333.4663 1358.515 44 845.9908 333.4663 1358.515 45 845.9908 333.4663 1358.515 46 864.4577 352.0758 1376.840 47 864.4577 352.0758 1376.840 48 864.4577 352.0758 1376.840 49 864.4577 352.0758 1376.840 50 864.4577 352.0758 1376.840 51 864.4577 352.0758 1376.840 52 864.4577 352.0758 1376.840 53 864.4577 352.0758 1376.840 54 864.4577 352.0758 1376.840 55 882.9246 370.6341 1395.215 56 882.9246 370.6341 1395.215 57 882.9246 370.6341 1395.215 58 882.9246 370.6341 1395.215 59 901.3916 389.1410 1413.642 60 901.3916 389.1410 1413.642 61 901.3916 389.1410 1413.642 62 901.3916 389.1410 1413.642 63 901.3916 389.1410 1413.642 64 901.3916 389.1410 1413.642 65 901.3916 389.1410 1413.642 66 901.3916 389.1410 1413.642 67 901.3916 389.1410 1413.642 68 901.3916 389.1410 1413.642 69 919.8585 407.5967 1432.120 70 919.8585 407.5967 1432.120 71 919.8585 407.5967 1432.120 72 919.8585 407.5967 1432.120 73 919.8585 407.5967 1432.120 74 938.3255 426.0010 1450.650 75 938.3255 426.0010 1450.650 76 938.3255 426.0010 1450.650 77 938.3255 426.0010 1450.650 78 938.3255 426.0010 1450.650 79 956.7924 444.3540 1469.231 80 956.7924 444.3540 1469.231 81 956.7924 444.3540 1469.231 82 956.7924 444.3540 1469.231 83 975.2594 462.6557 1487.863 84 975.2594 462.6557 1487.863 85 975.2594 462.6557 1487.863 86 975.2594 462.6557 1487.863 87 975.2594 462.6557 1487.863 88 975.2594 462.6557 1487.863 89 975.2594 462.6557 1487.863 90 975.2594 462.6557 1487.863 91 975.2594 462.6557 1487.863 92 993.7263 480.9062 1506.546 93 993.7263 480.9062 1506.546 94 993.7263 480.9062 1506.546 95 993.7263 480.9062 1506.546 96 1012.1932 499.1055 1525.281 97 1012.1932 499.1055 1525.281 98 1012.1932 499.1055 1525.281 99 1012.1932 499.1055 1525.281 100 1012.1932 499.1055 1525.281 101 1030.6602 517.2538 1544.067 102 1030.6602 517.2538 1544.067 103 1030.6602 517.2538 1544.067 104 1030.6602 517.2538 1544.067 105 1030.6602 517.2538 1544.067 106 1049.1271 535.3511 1562.903 107 1049.1271 535.3511 1562.903 108 1049.1271 535.3511 1562.903 109 1067.5941 553.3976 1581.791 110 1067.5941 553.3976 1581.791 111 1067.5941 553.3976 1581.791 112 1067.5941 553.3976 1581.791 113 1067.5941 553.3976 1581.791 114 1067.5941 553.3976 1581.791 115 1067.5941 553.3976 1581.791 116 1067.5941 553.3976 1581.791 117 1086.0610 571.3933 1600.729 118 1086.0610 571.3933 1600.729 119 1086.0610 571.3933 1600.729 120 1086.0610 571.3933 1600.729 121 1104.5279 589.3383 1619.718 122 1104.5279 589.3383 1619.718 123 1104.5279 589.3383 1619.718 124 1104.5279 589.3383 1619.718 125 1104.5279 589.3383 1619.718 126 1122.9949 607.2330 1638.757 127 1122.9949 607.2330 1638.757 128 1141.4618 625.0773 1657.846 129 1159.9288 642.8716 1676.986 130 1159.9288 642.8716 1676.986 131 1159.9288 642.8716 1676.986 132 1178.3957 660.6159 1696.175 133 1178.3957 660.6159 1696.175 134 1178.3957 660.6159 1696.175 135 1196.8626 678.3106 1715.415 136 1233.7965 713.5517 1754.041