Hi all ..First "Basic" question

Hello all

I'd like to introduce myself to you via this post here please read

You'll understand where i'm coming from with it.

We have three "identical" punches in the shop working side by side.

Over a 2 week period , punch 1 has snapped 130 widgets.
Punch 2 has snapped 90 widgets.
Punch 3 has snapped 65 widgets.
How should i work this through using Minitab to show that there is significant difference in the three.And when fixed fow to show significant improvement
Thanks all