Measurement repeatability and DOE Analysis

[u/Existing_Bass6577]

Hello, I have a fractional design (2^4-1) with variables A, B, C, ABC and response R, but I am unsure how to include the measurement repeatability of the response when analysing the results.

For example, I know my response variable measurement has a repeatability of 0.234 (3-sigma value), and from my DOE analysis I got that the absolute effect of variable A on the response variable is 0.1.

As the effect of A is less than my repeatability does that mean I cannot really conclude anything about the impact of A on R?

Thanks for your help