Hello all,
I have recently been working with stability analysis (Degradation) and am running up against a wall with what should be fairly simple (I think).
I have a dataset from multiple lots and the data are poolable (valid for common slope, different intercepts). I am trying to back calculate what release values would need to be to still be within the lower spec limit at X months. I have the slope, but I'm not sure how to account for the confidence interval in the model. I feel like this should be a fairly simple lift but I cannot seem to find how to do this without brute-forcing numbers into the model until I get the right value.
I'm happy to do more legwork...just hoping that someone can point me in the right direction.
Thanks in advance!
Chris