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Suppose IQ scores were obtained from randomly selected siblings. For 20 such pairs of people, the linear correlation coefficient is 0.936 and the equation of the regression line is Y^=-22.06+1.23x, where x represents the IQ score of the younger child. Also, the 20 x values have a mean of 93.66 and the the 20 y values have a mean 93.4. what is the best predicted IQ score of the older child given that the younger child has an IQ of 91. use significance level 0.05

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