Dear Allstaters,
In a population-based dataset, two continuous variables are correlated in a linear fashion.
I intend to derive normative values for the population based on the mean linear regression values, but I'd also like to give a confidence interval around the mean.
Should I be using the 95% CI around the mean, or the 90%, or another?
Could someone point me to a good reference(s) on this topic?
Thanks in advance
Roman Romero-Ortuno
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