A confidence interval for a future individual value is wider than a confidence interval for a mean of $y$ when $x=x_{0}$.

Question

Quizplus · Accepted Answer

A confidence interval for a future individual value accounts for both the error in estimating the mean of $y$ when $x=x_{0}$ and the additional variability of individual values around that mean, making it wider than a confidence interval for the mean of $y$ alone, which only accounts for the error in estimating the mean.

A Confidence Interval for a Future Individual Value Is Wider yyy

A Confidence Interval for a Future Individual Value Is Wider $y$