Please show work. Suppose IQ scores were obtained from randomly selected twins.

Question

Please show work. Suppose IQ scores were obtained from randomly selected twins. For 20 such pairs of ppl, the linear correlation coefficient is 0.883 & the equation of the regression line is y-hat = 13.07 + 0.87x, where x represents the IQ score of the twin born first. Also, the 20 x values have a mean of 99.86 & the Y values have a mean of 99.65. What is the best predicted IQ level of the twin born second given that the twin born 1st has an IQ of 96. Use a 0.05 significance level. The best predicted IQ of the twin born second is _____? (round 2 dp)

Explanation / Answer

Please show work. Suppose IQ scores were obtained from randomly selected twins.

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