Question
Dr. Max believes that environment is more important than genetics in influencing intelligence. He locates 12 pairs of identical twins that have been reared apart,
Dr. Max believes that environment is more important than genetics in influencing intelligence. He locates 12 pairs of identical twins that have been reared apart, one twin of each pair raised in an enriched environment and the other twin raised in an impoverished environment. He administers a standardized IQ test and obtains the results presented below. Can Dr. Max conclude that environment is more important than genetics? Test with α = .05, using a related-samples t-test. Show all your work. Full marks will not be given unless all steps and all calculations are shown. For all hypothesis tests, include all steps. Remember to provide concluding statements in the proper format.
PAIR | ENRICHED | impoverished |
1 | 100 | 102 |
2 | 95 | 93 |
3 | 122 | 116 |
4 | 107 | 110 |
5 | 85 | 75 |
6 | 96 | 100 |
7 | 135 | 122 |
8 | 110 | 110 |
9 | 106 | 100 |
10 | 90 | 90 |
11 | 100 | 88 |
12 | 113 | 108 |
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