Suppose IQ scores were obtained from randomly selected couples. For 20 such pair

Question

Suppose IQ scores were obtained from randomly selected couples. For 20 such pairs of people, the linear correlation coefficient is 0.885 and the equation of the regression line is y =-14 + 1.13x, where x represents the IQ score of the wife. Also, the 20 x values have a mean of 102.3 and the 20 y values have a mean of 102. What is the best predicted IQ of the husband, given that the wife has an IQ of 110? Use a significance level of 0.05 Click the icon to view the critical values of the Pearson correlation coefficient r. The best predicted IQ of the husband is (Round to two decimal places as needed.)

Explanation / Answer

Solution:-   Y^ = -14+1.13x

x = 110 ,Y^ = -14+1.13(110) = 110.3

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