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Best predicted iq of the younger child

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Suppose IQ scores were obtained from randomly selected siblings. For 20 such pairs of people, the linear correlation coefficient is 0.871 and the equation of the regression line is Modifying Above y with caret equals 18.05 plus 0.84 x, where x represents the IQ score of the older child. Also, the 20 x values have a mean of 106.02 and the 20 y values have a mean of 106.95.

What is the best predicted IQ of the younger child, given that the older child has an IQ of 110? Use a significance level of 0.05.

The best predicted IQ of the younger child is ______

(Round to two decimal places as needed.)

Reference no: EM131200731

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