obs gpa iq gender concept1 7.94 121 2 692 8.292 120 2 713 4.643 111 2 444 7.47 106 2 445 8.882 108 1 696 7.585 98 2 727 7.65 121 2 538 2.412 75 2 269 6 109 1 4710 8.833 122 2 6411 7.47 109 1 4612 5.528 106 1 6213 7.167 105 2 5314 7.571 89 1 6815 4.7 85 1 6216 8.167 117 1 5017 7.822 119 1 4618 7.598 98 1 6419 4 100 2 3520 6.231 104 1 4921 7.643 129 2 5022 1.76 98 2 4324 6.419 109 1 4426 9.648 128 2 5327 10.7 126 1 7228 10.58 123 2 5129 9.429 120 2 6530 8 96 2 5731 9.585 126 2 6732 9.571 134 1 6833 8.998 124 1 5134 8.333 122 1 5335 8.175 104 2 6036 8 118 2 4637 9.333 112 1 6238 9.5 125 2 6739 9.167 114 2 6140 10.14 111 1 6541 9.999 133 1 5543 10.76 106 2 9544 9.763 109 2 7245 9.41 121 2 6546 9.167 119 2 8447 9.348 109 2 4348 8.167 88 2 5550 3.647 82 2 4151 3.408 89 1 5652 3.936 111 2 3053 7.167 104 2 7154 7.647 114 2 5955 .53 81 2 1656 6.173 74 2 4257 7.295 101 2 7258 7.295 123 1 6559 8.938 124 1 5560 7.882 96 1 3261 8.353 118 2 6862 5.062 102 2 4563 8.175 121 2 6564 8.235 115 2 5665 7.588 113 2 7168 7.647 112 2 4769 5.237 79 1 2871 7.825 96 2 4872 7.333 95 1 6474 9.167 100 2 9076 7.996 106 2 5677 8.714 101 1 6578 7.833 102 1 6379 4.885 88 2 5280 7.998 118 1 7483 3.82 89 2 5684 5.936 88 1 7385 9 93 1 6586 9.5 122 1 8887 6.057 102 2 5288 6.057 101 1 6189 6.938 117 2 39
The data from data216.dat contains information on 78seventh-grade students. We want to know how well each of IQ scoreand self-concept score predicts GPA using least-squares regression.We also want to know which of these explanatory variables predictsGPA better. Give numerical measures that answer these questions.(Round your answers to three decimal places.)
(Regressor: IQ) R 2 =
(Regressor: Self-Concept) R 2 =
Which variable is the better predictor?
-IQ
-Self Concept
