do non-normality data matter does nonnormality matter in regression does non normality matter in regression how to predict x% non gaussian what is non normal does non-normality matter why does qq curves have non-gaussian lines why does the non-normality matter when using regression what is the shape of an excel curve do non-normalities matter what is non gaussian what is the function of non normalized regression in mydata which variables does non-gaussian mean does the non-normality matter what is the value of the $y variable does non gaussian data affect prediction which condition does not matter in a regression? does nonnormality matter does the non-normality matter does nonnormality matter