Suppose IQ scores were obtained from randomly selected twinstwins. For 2020 such

Question

Suppose IQ scores were obtained from randomly selected twinstwins. For 2020 such pairs of people, the linear correlation coefficient is 0.9010.901 and the equation of the regression line is ModifyingAbove y with caret equals 12.34 plus 0.87 xy=12.34+0.87x, where x represents the IQ score of the twin born secondtwin born second. Also, the 2020 x values have a mean of 98.8898.88 and the 2020 y values have a mean of 98.798.7. What is the best predicted IQ of the twin born firsttwin born first, given that the twin born secondtwin born second has an IQ of 9494? Use a significance level of 0.05. The best predicted IQ of the twin born firsttwin born first is nothing. (Round to two decimal places as needed.)

Explanation / Answer

XY = 12.34 + 0.87 x

The best predicted IQ of the twin born firsttwin born first, given that the twin born secontwin born second has IQ of 9494 is

X = 9494

xy = 12.34 + 0.87 * 9494

xy = 12.34 + 8259.78

xy = 8272.12

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.