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Suppose IQ scores were obtained tor 20 randomly selected sets ot twins. The 20 pairs ot measurements yield x twin born second has an
Suppose IQ scores were obtained tor 20 randomly selected sets ot twins. The 20 pairs ot measurements yield x twin born second has an IQ ot 96? use a significance level of 0.05. Click the icon to view the critical values ot the Pearson correlation coefficient r. The best predicted value ot y IS (Round to two decimal places as needed.) = 100.38, y = 99.8, r- 0.931, P-value = 0.000, and y 2.11 + 1 _02x, where x represents the IQ score of the twin born second. Find the best predicted value of y given that the Critical Values of the Pearson Correlation Coefficient r Critical Values ot the Pearson Correlation Coefficient r 6 8 9 10 11 12 13 14 15 16 17 18 19 20 25 35 40 45 60 70 80 90 100 0.05 0.950 0.878 0.811 0.754 0.707 0.666 0.632 0.602 0.576 0.553 0.532 0.514 0.497 0.482 0.468 0.456 0.444 0.396 0.361 0.335 0.312 0.294 0.279 0.254 0.236 0.220 0.207 o. 196 0.05 0.01 0.990 0.959 0.917 0.875 0.834 0.798 0.765 0.735 0.708 0.684 0.661 0.641 0.623 0.606 0.590 0.575 0.561 0.505 0.463 0.430 0.402 0.378 0.361 0.330 0.305 0.286 0.269 0.256 0.01 NOTE. To test Ho p-o against HI: O, reject Ho it the absolute value of r is greater than the critical value In the table.
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