Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of measurements yield x = 103.51, y = 102.4, r=0.972, P-value = 0.000, and ŷ= -4.6+1.03x, where x represents the IQ score of the younger child. Find the best predicted value of y given that the younger child has an IQ of 95? 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 ofŷ is. (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Question
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Suppose IQ scores were obtained for 20 randomly selected sets of
siblings. The 20 pairs of measurements yield x = 103.51, y = 102.4,
r=0.972, P-value = 0.000, and y=-4.6+1.03x, where x represents the IQ
score of the younger child. Find the best predicted value of y given that the
younger child has an IQ of 95? 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.)
Transcribed Image Text:Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of measurements yield x = 103.51, y = 102.4, r=0.972, P-value = 0.000, and y=-4.6+1.03x, where x represents the IQ score of the younger child. Find the best predicted value of y given that the younger child has an IQ of 95? 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.)
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