S-PLUS : Copyright (c) 1988, 1995 MathSoft, Inc. S : Copyright AT&T. Version 3.3 Release 1 for Sun SPARC, SunOS 4.1.x : 1995 Working data will be in /afs/ir/users/k/e/kessler/.Data Call: lm(formula = mean ~ O + V + C + H + R + S, data = exp2) Residuals: Min 1Q Median 3Q Max -1.346 -0.4771 -0.05046 0.4996 1.949 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.4690 2.7368 1.2675 0.2138 O 0.0277 0.0734 0.3778 0.7080 V 0.0034 0.2129 0.0158 0.9875 C -0.1104 0.0970 -1.1376 0.2635 H 0.1257 0.0561 2.2404 0.0319 R 0.1257 0.0523 2.4023 0.0221 S 0.0719 0.0627 1.1482 0.2591 Residual standard error: 0.752 on 33 degrees of freedom Multiple R-Squared: 0.3688 F-statistic: 3.214 on 6 and 33 degrees of freedom, the p-value is 0.01348 Correlation of Coefficients: (Intercept) O V C H R O -0.2194 V -0.9349 0.0305 C -0.6216 0.0085 0.4029 H -0.1552 -0.1659 0.0900 0.1356 R 0.2131 0.0699 -0.3354 -0.1440 0.0321 S 0.0683 -0.3653 0.0668 -0.2064 -0.3602 -0.0573 Call: lm(formula = mean ~ O, data = exp2) Residuals: Min 1Q Median 3Q Max -1.738 -0.5759 -0.08572 0.7198 2.22 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.3074 0.6141 5.3861 0.0000 O 0.1050 0.0720 1.4583 0.1530 Residual standard error: 0.8584 on 38 degrees of freedom Multiple R-Squared: 0.053 F-statistic: 2.127 on 1 and 38 degrees of freedom, the p-value is 0.153 Correlation of Coefficients: (Intercept) O -0.9753 Call: lm(formula = mean ~ V, data = exp2) Residuals: Min 1Q Median 3Q Max -1.746 -0.6318 0.01095 0.5233 1.985 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.2345 2.2346 1.4475 0.1560 V 0.0892 0.2102 0.4243 0.6737 Residual standard error: 0.88 on 38 degrees of freedom Multiple R-Squared: 0.004715 F-statistic: 0.18 on 1 and 38 degrees of freedom, the p-value is 0.6737 Correlation of Coefficients: (Intercept) V -0.9981 Call: lm(formula = mean ~ C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.813 -0.5872 0.008887 0.5072 1.946 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 4.7553 0.8517 5.5835 0.0000 C -0.0680 0.0995 -0.6838 0.4983 Residual standard error: 0.8767 on 38 degrees of freedom Multiple R-Squared: 0.01215 F-statistic: 0.4676 on 1 and 38 degrees of freedom, the p-value is 0.4983 Correlation of Coefficients: (Intercept) C -0.9867 Call: lm(formula = mean ~ H, data = exp2) Residuals: Min 1Q Median 3Q Max -1.489 -0.5754 -0.1625 0.5376 2.34 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.4650 0.2696 12.8505 0.0000 H 0.1530 0.0510 2.9984 0.0048 Residual standard error: 0.7932 on 38 degrees of freedom Multiple R-Squared: 0.1913 F-statistic: 8.99 on 1 and 38 degrees of freedom, the p-value is 0.004766 Correlation of Coefficients: (Intercept) H -0.8852 Call: lm(formula = mean ~ O + V, data = exp2) Residuals: Min 1Q Median 3Q Max -1.848 -0.5742 -0.08982 0.6743 2.128 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 1.7113 2.4067 0.7110 0.4815 O 0.1135 0.0736 1.5432 0.1313 V 0.1437 0.2094 0.6862 0.4969 Residual standard error: 0.8644 on 37 degrees of freedom Multiple R-Squared: 0.0649 F-statistic: 1.284 on 2 and 37 degrees of freedom, the p-value is 0.289 Correlation of Coefficients: (Intercept) O O -0.4101 V -0.9664 0.1688 Call: lm(formula = mean ~ R, data = exp2) Residuals: Min 1Q Median 3Q Max -1.435 -0.6604 -0.005976 0.5433 1.918 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.6561 0.2933 12.4651 0.0000 R 0.1094 0.0545 2.0056 0.0521 Residual standard error: 0.8388 on 38 degrees of freedom Multiple R-Squared: 0.09572 F-statistic: 4.022 on 1 and 38 degrees of freedom, the p-value is 0.05206 Correlation of Coefficients: (Intercept) R -0.8919 Call: lm(formula = mean ~ V + C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.827 -0.5957 0.02183 0.4953 1.93 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 4.3019 2.9717 1.4476 0.1561 V 0.0370 0.2322 0.1594 0.8742 C -0.0609 0.1103 -0.5516 0.5845 Residual standard error: 0.8881 on 37 degrees of freedom Multiple R-Squared: 0.01283 F-statistic: 0.2405 on 2 and 37 degrees of freedom, the p-value is 0.7875 Correlation of Coefficients: (Intercept) V V -0.9569 C -0.6512 0.4071 Call: lm(formula = mean ~ S, data = exp2) Residuals: Min 1Q Median 3Q Max -1.589 -0.6192 -0.1442 0.5934 1.949 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.8658 0.1937 19.9579 0.0000 S 0.1210 0.0547 2.2114 0.0331 Residual standard error: 0.8302 on 38 degrees of freedom Multiple R-Squared: 0.114 F-statistic: 4.89 on 1 and 38 degrees of freedom, the p-value is 0.03309 Correlation of Coefficients: (Intercept) S -0.7353 Call: lm(formula = mean ~ O + C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.907 -0.5998 -0.1211 0.6702 2.102 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.9647 0.9820 4.0373 0.0003 O 0.1118 0.0727 1.5383 0.1325 C -0.0845 0.0983 -0.8596 0.3956 Residual standard error: 0.8613 on 37 degrees of freedom Multiple R-Squared: 0.07154 F-statistic: 1.425 on 2 and 37 degrees of freedom, the p-value is 0.2533 Correlation of Coefficients: (Intercept) O O -0.5234 C -0.7786 -0.1090 Call: lm(formula = mean ~ O + V + C + H + R + S, data = exp2) Residuals: Min 1Q Median 3Q Max -1.004 -0.4314 -0.1096 0.4207 1.965 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 16.7349 4.3259 3.8686 0.0005 O -0.3320 0.3112 -1.0670 0.2937 V -1.4071 0.5570 -2.5261 0.0165 C -0.9988 0.3401 -2.9368 0.0060 H 0.4763 0.2853 1.6695 0.1045 R 0.4626 0.2066 2.2388 0.0320 S 0.2718 0.2492 1.0908 0.2833 Residual standard error: 0.6841 on 33 degrees of freedom Multiple R-Squared: 0.4776 F-statistic: 5.029 on 6 and 33 degrees of freedom, the p-value is 0.0009289 Correlation of Coefficients: (Intercept) O V C H R O -0.4319 V -0.8831 0.1954 C -0.7500 0.1712 0.4445 H 0.3966 -0.6405 -0.4933 0.1567 R 0.5925 -0.0344 -0.7267 -0.3952 0.1925 S -0.0106 -0.3475 0.3744 -0.3832 -0.4173 -0.1885 Call: lm(formula = mean ~ O, data = exp2) Residuals: Min 1Q Median 3Q Max -1.362 -0.5211 -0.2307 0.6053 2.207 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 2.1800 0.5879 3.7084 0.0007 O 0.4370 0.1256 3.4784 0.0013 Residual standard error: 0.7682 on 38 degrees of freedom Multiple R-Squared: 0.2415 F-statistic: 12.1 on 1 and 38 degrees of freedom, the p-value is 0.001281 Correlation of Coefficients: (Intercept) O -0.9784 Call: lm(formula = mean ~ V, data = exp2) Residuals: Min 1Q Median 3Q Max -1.692 -0.6198 -0.0037 0.5657 2.039 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.9604 1.9081 2.0755 0.0448 V 0.0370 0.3198 0.1158 0.9084 Residual standard error: 0.8819 on 38 degrees of freedom Multiple R-Squared: 0.0003527 F-statistic: 0.01341 on 1 and 38 degrees of freedom, the p-value is 0.9084 Correlation of Coefficients: (Intercept) V -0.9973 Call: lm(formula = mean ~ C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.854 -0.6095 -0.04796 0.4117 1.962 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 6.2482 1.3554 4.6100 0.0000 C -0.3957 0.2581 -1.5331 0.1335 Residual standard error: 0.856 on 38 degrees of freedom Multiple R-Squared: 0.05825 F-statistic: 2.35 on 1 and 38 degrees of freedom, the p-value is 0.1335 Correlation of Coefficients: (Intercept) C -0.995 Call: lm(formula = mean ~ H, data = exp2) Residuals: Min 1Q Median 3Q Max -1.132 -0.5309 -0.2718 0.6163 2.155 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.3521 0.2413 13.8933 0.0000 H 0.4037 0.1027 3.9328 0.0003 Residual standard error: 0.7436 on 38 degrees of freedom Multiple R-Squared: 0.2893 F-statistic: 15.47 on 1 and 38 degrees of freedom, the p-value is 0.0003445 Correlation of Coefficients: (Intercept) H -0.8732 Call: lm(formula = mean ~ O + V, data = exp2) Residuals: Min 1Q Median 3Q Max -1.359 -0.5189 -0.231 0.6081 2.21 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 2.2370 1.7577 1.2727 0.2111 O 0.4372 0.1275 3.4300 0.0015 V -0.0097 0.2826 -0.0344 0.9727 Residual standard error: 0.7785 on 37 degrees of freedom Multiple R-Squared: 0.2415 F-statistic: 5.891 on 2 and 37 degrees of freedom, the p-value is 0.00601 Correlation of Coefficients: (Intercept) O O -0.2858 V -0.9408 -0.0482 Call: lm(formula = mean ~ R, data = exp2) Residuals: Min 1Q Median 3Q Max -1.69 -0.5968 -0.03288 0.5597 2.036 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.9850 0.4819 8.2697 0.0000 R 0.0741 0.1745 0.4243 0.6737 Residual standard error: 0.88 on 38 degrees of freedom Multiple R-Squared: 0.004716 F-statistic: 0.1801 on 1 and 38 degrees of freedom, the p-value is 0.6737 Correlation of Coefficients: (Intercept) R -0.9574 Call: lm(formula = mean ~ V + C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.816 -0.5829 -0.174 0.5131 1.872 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 10.0555 3.7243 2.7000 0.0104 V -0.4379 0.3991 -1.0971 0.2797 C -0.6256 0.3319 -1.8848 0.0673 Residual standard error: 0.8537 on 37 degrees of freedom Multiple R-Squared: 0.08792 F-statistic: 1.783 on 2 and 37 degrees of freedom, the p-value is 0.1822 Correlation of Coefficients: (Intercept) V V -0.9318 C -0.8683 0.6313 Call: lm(formula = mean ~ S, data = exp2) Residuals: Min 1Q Median 3Q Max -1.304 -0.5577 -0.08027 0.5176 2.134 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.6763 0.1970 18.6646 0.0000 S 0.3829 0.1167 3.2811 0.0022 Residual standard error: 0.7786 on 38 degrees of freedom Multiple R-Squared: 0.2208 F-statistic: 10.77 on 1 and 38 degrees of freedom, the p-value is 0.002221 Correlation of Coefficients: (Intercept) S -0.7806 Call: lm(formula = mean ~ O + C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.506 -0.5423 -0.2355 0.55 2.051 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.8023 1.4164 2.6846 0.0108 O 0.4155 0.1258 3.3017 0.0021 C -0.2917 0.2320 -1.2570 0.2166 Residual standard error: 0.7624 on 37 degrees of freedom Multiple R-Squared: 0.2726 F-statistic: 6.932 on 2 and 37 degrees of freedom, the p-value is 0.002774 Correlation of Coefficients: (Intercept) O O -0.5230 C -0.9112 0.1358 Call: lm(formula = mean ~ O + V + C + H + R + S, data = exp2) Residuals: Min 1Q Median 3Q Max -1.038 -0.461 -0.08086 0.3892 1.834 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 1.5490 2.6044 0.5948 0.5561 O -0.0180 0.0667 -0.2702 0.7887 V 0.1524 0.2016 0.7561 0.4550 C -0.0262 0.0946 -0.2767 0.7838 H 0.1765 0.0496 3.5561 0.0012 R 0.1144 0.0489 2.3376 0.0256 S 0.0689 0.0638 1.0800 0.2880 Residual standard error: 0.6863 on 33 degrees of freedom Multiple R-Squared: 0.4743 F-statistic: 4.963 on 6 and 33 degrees of freedom, the p-value is 0.001018 Correlation of Coefficients: (Intercept) O V C H R O -0.1787 V -0.9336 -0.0054 C -0.6368 0.0097 0.3994 H -0.3119 -0.2584 0.2314 0.3866 R 0.2020 0.0829 -0.3378 -0.0719 -0.0153 S 0.0789 -0.3145 0.0962 -0.3575 -0.3120 -0.1277 Call: lm(formula = mean ~ O, data = exp2) Residuals: Min 1Q Median 3Q Max -1.75 -0.586 -0.09164 0.7122 2.211 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.4098 0.6002 5.6806 0.0000 O 0.0948 0.0719 1.3189 0.1951 Residual standard error: 0.8625 on 38 degrees of freedom Multiple R-Squared: 0.04377 F-statistic: 1.739 on 1 and 38 degrees of freedom, the p-value is 0.1951 Correlation of Coefficients: (Intercept) O -0.9738 Call: lm(formula = mean ~ V, data = exp2) Residuals: Min 1Q Median 3Q Max -1.746 -0.6318 0.01095 0.5233 1.985 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.2345 2.2346 1.4475 0.1560 V 0.0892 0.2102 0.4243 0.6737 Residual standard error: 0.88 on 38 degrees of freedom Multiple R-Squared: 0.004715 F-statistic: 0.18 on 1 and 38 degrees of freedom, the p-value is 0.6737 Correlation of Coefficients: (Intercept) V -0.9981 Call: lm(formula = mean ~ C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.83 -0.5782 0.008517 0.5126 1.938 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 4.8541 0.8171 5.9404 0.0000 C -0.0811 0.0970 -0.8361 0.4083 Residual standard error: 0.8741 on 38 degrees of freedom Multiple R-Squared: 0.01807 F-statistic: 0.6991 on 1 and 38 degrees of freedom, the p-value is 0.4083 Correlation of Coefficients: (Intercept) C -0.9856 Call: lm(formula = mean ~ H, data = exp2) Residuals: Min 1Q Median 3Q Max -1.087 -0.517 -0.1722 0.6181 2.267 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.4617 0.2069 16.7291 0.0000 H 0.1802 0.0431 4.1858 0.0002 Residual standard error: 0.7297 on 38 degrees of freedom Multiple R-Squared: 0.3156 F-statistic: 17.52 on 1 and 38 degrees of freedom, the p-value is 0.0001621 Correlation of Coefficients: (Intercept) H -0.8301 Call: lm(formula = mean ~ O + V, data = exp2) Residuals: Min 1Q Median 3Q Max -1.862 -0.5863 -0.09837 0.6538 2.121 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 1.8128 2.4250 0.7476 0.4595 O 0.1039 0.0736 1.4116 0.1664 V 0.1435 0.2110 0.6800 0.5007 Residual standard error: 0.8687 on 37 degrees of freedom Multiple R-Squared: 0.05557 F-statistic: 1.089 on 2 and 37 degrees of freedom, the p-value is 0.3472 Correlation of Coefficients: (Intercept) O O -0.4153 V -0.9684 0.1824 Call: lm(formula = mean ~ R, data = exp2) Residuals: Min 1Q Median 3Q Max -1.437 -0.5922 0.01588 0.5409 1.889 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.6261 0.2893 12.5329 0.0000 R 0.1192 0.0553 2.1530 0.0377 Residual standard error: 0.8327 on 38 degrees of freedom Multiple R-Squared: 0.1087 F-statistic: 4.635 on 1 and 38 degrees of freedom, the p-value is 0.03773 Correlation of Coefficients: (Intercept) R -0.8904 Call: lm(formula = mean ~ V + C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.838 -0.5826 0.02096 0.506 1.928 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 4.5927 2.9433 1.5604 0.1272 V 0.0215 0.2317 0.0926 0.9267 C -0.0771 0.1077 -0.7154 0.4789 Residual standard error: 0.8857 on 37 degrees of freedom Multiple R-Squared: 0.01829 F-statistic: 0.3447 on 2 and 37 degrees of freedom, the p-value is 0.7107 Correlation of Coefficients: (Intercept) V V -0.9596 C -0.6451 0.4085 Call: lm(formula = mean ~ S, data = exp2) Residuals: Min 1Q Median 3Q Max -1.424 -0.6951 -0.1936 0.5953 1.877 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.9239 0.1819 21.5774 0.0000 S 0.1249 0.0607 2.0579 0.0465 Residual standard error: 0.8367 on 38 degrees of freedom Multiple R-Squared: 0.1003 F-statistic: 4.235 on 1 and 38 degrees of freedom, the p-value is 0.04651 Correlation of Coefficients: (Intercept) S -0.6862 Call: lm(formula = mean ~ O + C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.917 -0.6114 -0.1111 0.6132 2.094 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 4.1189 0.9688 4.2517 0.0001 O 0.0992 0.0721 1.3746 0.1775 C -0.0897 0.0961 -0.9336 0.3566 Residual standard error: 0.864 on 37 degrees of freedom Multiple R-Squared: 0.06578 F-statistic: 1.303 on 2 and 37 degrees of freedom, the p-value is 0.284 Correlation of Coefficients: (Intercept) O O -0.5521 C -0.7841 -0.0651 Call: lm(formula = mean ~ O + V + C + H + R + S, data = exp2) Residuals: Min 1Q Median 3Q Max -1.137 -0.4349 -0.1337 0.4645 1.919 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 12.9539 3.7428 3.4611 0.0015 O -0.1036 0.2688 -0.3854 0.7024 V -1.0207 0.4536 -2.2502 0.0312 C -0.8768 0.3479 -2.5206 0.0167 H 0.4812 0.2111 2.2795 0.0292 R 0.4599 0.2027 2.2686 0.0300 S 0.1290 0.2203 0.5854 0.5622 Residual standard error: 0.7174 on 33 degrees of freedom Multiple R-Squared: 0.4256 F-statistic: 4.075 on 6 and 33 degrees of freedom, the p-value is 0.003636 Correlation of Coefficients: (Intercept) O V C H R O -0.3514 V -0.8828 0.1186 C -0.7910 0.1139 0.5108 H 0.3544 -0.6341 -0.4115 0.0509 R 0.5776 -0.0938 -0.6491 -0.5010 0.2110 S -0.0125 -0.4262 0.3225 -0.2339 -0.2240 -0.0699 Call: lm(formula = mean ~ O, data = exp2) Residuals: Min 1Q Median 3Q Max -1.454 -0.5521 -0.2045 0.6633 2.134 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 2.1713 0.6602 3.2888 0.0022 O 0.4631 0.1494 3.0992 0.0036 Residual standard error: 0.7881 on 38 degrees of freedom Multiple R-Squared: 0.2018 F-statistic: 9.605 on 1 and 38 degrees of freedom, the p-value is 0.003643 Correlation of Coefficients: (Intercept) O -0.982 Call: lm(formula = mean ~ V, data = exp2) Residuals: Min 1Q Median 3Q Max -1.692 -0.6198 -0.0037 0.5657 2.039 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.9604 1.9081 2.0755 0.0448 V 0.0370 0.3198 0.1158 0.9084 Residual standard error: 0.8819 on 38 degrees of freedom Multiple R-Squared: 0.0003527 F-statistic: 0.01341 on 1 and 38 degrees of freedom, the p-value is 0.9084 Correlation of Coefficients: (Intercept) V -0.9973 Call: lm(formula = mean ~ C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.785 -0.591 -0.06665 0.3641 1.942 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 6.2558 1.4437 4.3330 0.0001 C -0.4184 0.2898 -1.4437 0.1570 Residual standard error: 0.8588 on 38 degrees of freedom Multiple R-Squared: 0.052 F-statistic: 2.084 on 1 and 38 degrees of freedom, the p-value is 0.157 Correlation of Coefficients: (Intercept) C -0.9956 Call: lm(formula = mean ~ H, data = exp2) Residuals: Min 1Q Median 3Q Max -1.211 -0.5267 -0.2705 0.6095 2.042 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.4092 0.2351 14.5006 0.0000 H 0.4349 0.1144 3.8020 0.0005 Residual standard error: 0.7507 on 38 degrees of freedom Multiple R-Squared: 0.2756 F-statistic: 14.45 on 1 and 38 degrees of freedom, the p-value is 0.0005058 Correlation of Coefficients: (Intercept) H -0.8632 Call: lm(formula = mean ~ O + V, data = exp2) Residuals: Min 1Q Median 3Q Max -1.465 -0.5495 -0.2214 0.6839 2.123 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 1.9651 1.8467 1.0641 0.2942 O 0.4630 0.1514 3.0584 0.0041 V 0.0347 0.2895 0.1198 0.9053 Residual standard error: 0.7985 on 37 degrees of freedom Multiple R-Squared: 0.2021 F-statistic: 4.685 on 2 and 37 degrees of freedom, the p-value is 0.01536 Correlation of Coefficients: (Intercept) O O -0.3533 V -0.9321 -0.0026 Call: lm(formula = mean ~ R, data = exp2) Residuals: Min 1Q Median 3Q Max -1.698 -0.6227 -0.02804 0.6051 2.03 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 4.0441 0.4686 8.6294 0.0000 R 0.0555 0.1819 0.3053 0.7618 Residual standard error: 0.881 on 38 degrees of freedom Multiple R-Squared: 0.002447 F-statistic: 0.09321 on 1 and 38 degrees of freedom, the p-value is 0.7618 Correlation of Coefficients: (Intercept) R -0.9548 Call: lm(formula = mean ~ V + C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.733 -0.6357 -0.07452 0.419 1.993 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 8.4942 3.3854 2.5091 0.0166 V -0.2682 0.3664 -0.7320 0.4688 C -0.5479 0.3410 -1.6064 0.1167 Residual standard error: 0.8641 on 37 degrees of freedom Multiple R-Squared: 0.06553 F-statistic: 1.297 on 2 and 37 degrees of freedom, the p-value is 0.2854 Correlation of Coefficients: (Intercept) V V -0.9033 C -0.8337 0.5186 Call: lm(formula = mean ~ S, data = exp2) Residuals: Min 1Q Median 3Q Max -1.366 -0.581 -0.1069 0.5716 1.975 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 3.8665 0.1865 20.7309 0.0000 S 0.3543 0.1505 2.3546 0.0238 Residual standard error: 0.824 on 38 degrees of freedom Multiple R-Squared: 0.1273 F-statistic: 5.544 on 1 and 38 degrees of freedom, the p-value is 0.02381 Correlation of Coefficients: (Intercept) S -0.7156 Call: lm(formula = mean ~ O + C, data = exp2) Residuals: Min 1Q Median 3Q Max -1.553 -0.5241 -0.2538 0.6591 2.035 Coefficients: Value Std. Error t value Pr(>|t|) (Intercept) 4.0684 1.4912 2.7283 0.0097 O 0.4510 0.1477 3.0526 0.0042 C -0.3719 0.2630 -1.4144 0.1656 Residual standard error: 0.7779 on 37 degrees of freedom Multiple R-Squared: 0.2427 F-statistic: 5.929 on 2 and 37 degrees of freedom, the p-value is 0.005839 Correlation of Coefficients: (Intercept) O O -0.4806 C -0.8994 0.0579