Given the regression equation $y=3+7 x$, the most central value in a confidence interval for the mean of $y$, given $x=4$ is
A) 4 .
B) 31 .
C) 7 .
D) 3 .

Name: Given the regression equation $y=3+7 x$, the most central value in a confidence interval for the mean of $y$, given $x=4$ is A) 4 . B) 31 . C) 7 . D) 3 .
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Question

Quizplus · Accepted Answer

To find the most central value in a confidence interval for the mean of $y$ given $x=4$, substitute $x=4$ into the regression equation $y=3+7x$. This gives $y=3+7(4)=3+28=31$.

Given the Regression Equation y=3+7xy=3+7 xy=3+7x , the Most Central Value in a Confidence Interval for Value

Given the Regression Equation $y=3+7 x$ , the Most Central Value in a Confidence Interval for Value