Suppose IQ scores were obtained from randomly selected couplescouples. For 20 such pairs of people, the...
Suppose IQ scores were obtained from randomly selected couplescouples. For 20 such pairs of people, the linear correlation coefficient is 0.916 and the equation of the regression line is ModifyingAbove y with caret equals negative 36.11 plus 1.33 xy=−36.11+1.33x, where x represents the IQ score of the husbandhusband. Also, the 20 x values have a mean of 103.05 and the 20 y values have a mean of 101.45. What is the best predicted IQ of the wifewife, given that the husbandhusband has an IQ of 106? Use a significance level of 0.05.
Homework Answers
The best predicted IQ of the wife, given that the husband has an IQ of 106?
IQ (wife) = −36.11+1.33x
= -36.11 + 1.33 * 106
= 104.87
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