Hi

The original question was: Is the anaesthetic effective in reducing stress for disbudded animals?

From the given data, I obtained confidence intervals as shown below inbold

One-Sample T: Change_DB (disbudding)

Variable N Mean StDev SE Mean 95% CI

Change_DB 6 -0.311 0.370 0.151(-0.699, 0.078)

MTB > Onet 'Change_LADB'.

One-Sample T: Change_LADB (local anaesthetic)

Variable N Mean StDev SE Mean 95% CI

Change_LADB 8 0.208 0.372 0.131(-0.103, 0.519)

My question here is....using confidence intervals, how can I comment on the effectiveness of the local anaesthetic in reducing stress for cows that undergo disbudding.

I found both intervals overlap...then what does this mean? can anyone explain please