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Use a significance level of 0.05. Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x
Use a significance level of 0.05. Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x = 102.64, y = 103.85, r=0.907, P-value =0.000, and y =9.99 + 0.91x, 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 94? Click the icon to view the critical values of the Pearson correlation coefficient r. Critical Values of the Pearson Correlation Coefficient r - X The best predicted value of y is . (Round to two decimal places as needed.) Critical Values of the Pearson Correlation Coefficient r a =0.05 a = 0.01 NOTE: To test Ho: p= 0 0.950 0.990 against H,: p #0, reject Ho 0.878 0.959 0.811 if the absolute value of r is 0.917 greater than the critical 0.754 0.875 value in the table. 0.707 0.834 0.666 0.798 0.632 0.765 0.602 0.735 0.576 0.708 0.553 0.684 0.532 0.661 0.514 0.641 0.497 0.623 0.482 0.606 0.468 0.590 0.456 0.575 0.444 0.561 0.396 0.505 0.361 0.46 0.335 0.430 0.312 0.402 0.294 0.378 0.279 0.361 0.254 0.330 0.236 0.305 0.220 0.286 0.207 0.269 100 0.196 0.256 n a =0.05 =0.01
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