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 0.896 and the equation of the regression line is y=-11.51 + 1.1x, where x represents the IQ score of the wife. Also, the 20 x values have a mean of 97.28 and the 20 y values have a mean of 95.7 What is the best predicted IQ of the husband, given that the wife has an IQ of 108? Use a significance level of 0.05 1Q of the husband. given that the i scoi.Alotnear correlatio coflient is o

Explanation / Answer

Predicted value of IQ of husband will be

y = -11.51+1.1*108

y = 107.29

So, answer is 107.29

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