Answered

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Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x=98.13​, y=100.6​, r=0.904​, ​P-value=0.000, ŷ=14.68+0.88x​, where x represents the IQ score of the twin born first. Find the best predicted value of ModifyingAbove y with caret given that the twin born first has an IQ of 104​? Use a significance level of 0.05.

Sagot :

The best-predicted value of Modifying Above y with caret given that the twin born first has an IQ of 104​ is 106.2.

The dependent variable's predicted value in basic linear regression is given by the equation = b0 + b1x.

In order to minimize the total sum of squared errors, the values of b0 and b1 are derived from the data using the equation line = b0 + b1X. (the error is the difference between the predicted value and the actual value of y).

Use regression equation

ŷ=14.68+0.88x​

plug in IQ, which is x

y = 14.68 + 0.88(104)

 = 106.2

Hence, the answer is 106.2

To learn more about best-predicted value here:

https://brainly.com/question/27846998

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