# MATLAB: Confint and predint bounds trouble

boundsconfintMATLABstatistics

Hi, I'm having trouble understanding how confint and predint work. I thought that since predint takes into account the uncertanty of a predicted measurement, the predint bounds would be broader than the confint bounds (for the same confidence level, i.e. 95%). But whenever I fit simple data and I draw the confint bounds I find them broader than the predint bounds (for any type of bounds.). So what is it that I'm missing out?