When calculating prediction intervals for predicted values of y based on a given x, all 95 percent prediction intervals will be of equal width.

Question

Quizplus · Accepted Answer

The width of a 95% prediction interval can vary depending on the value of x, because it takes into account both the error in estimating the regression line (which is constant for all x) and the variability of the response variable around the regression line (which can change with x).

When Calculating Prediction Intervals for Predicted Values of Y Based