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Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x = 98.48, y = 101.05, r=
Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x = 98.48, y = 101.05, r= 0.932, P-value =0.000, and y = - 3.2 + 1.06x, where x represents the IQ score of the twin born second. Find the best predicted value of y given that the twin born second has an IQ of 97? Use a significance level of 0.05. Click the icon to view the critical values of the Pearson correlation coefficient r. The best predicted value of y is]. (Round to two decimal places as needed.)Critical values of the pearson correlation coefficient r Critical Values of the Pearson Correlation Coefficient r n or = 0.05 O = 0.01 NOTE: To test Ho: p= 0 4 0.950 0.990 against Hy: p #0, reject Ho 5 0.878 0.959 if the absolute value of r is 6 0.811 0.917 greater than the critical 0.754 0.875 value in the table. 8 0.707 0.834 CO 0.666 0.798 10 0.632 0.765 11 0.602 0.735 12 0.576 0.708 13 0.553 0.684 14 0.532 0.661 15 0.514 0.641 16 0.497 0.623 17 0.482 0.606 18 0.468 0.590
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