My [metric] went from [before] to
[after] over [period]. How much
variation is normal, what would make
a change meaningful, and how long
must I watch before concluding
anything?

Is That a Trend or Just Noise?

How much wobble is normal before it means anything.

Prompt

My [metric] has gone from [before] to [after] over [period]. Explain how much variation is normal for this measure, what would make a change meaningful, and how long I'd need to watch before concluding anything.