1
$\begingroup$

I have performed a multiple linear regression to forecast 12-month sales from 6-month values (for various predictors) per customer. I obtained y-values per customer and respectively summed the predicted and actual y-values per month to obtain the total sales per month. Is it possible to calculate a prediction interval for the summed y-variable?

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.