# Help me understand the ANOVA

F

#### fengineering

We are doing a gage r&r study at work. Here are the specifics.

There are 10 alike parts.
Each part we measure ID, OD, and overall length. 3 measurements.
There are 3 inspectors. We each measured the same 10 parts.
So overall, thats 90 total measurements.

I have the formula for the Anova coefficient.
But I don't know what the variables are.
what is p
what is n
what is x
what is xbar
what is S
what is N

F=MST/MSE

MST=SST/(p-1)
SST=∑n(x-x ̅)^2

MSE=SSE/(N-p)
SSE=∑(n-1)S^2

Have we done enough to do an Anova type gage r&r?

Once I get F, the Anova coefficient, what does it tell me?

#### Miner

##### Forum Moderator
Staff member
Re: Help me in this Anova problem.

The Excell file attached to my blog post on R&R will calculate the ANOVA approach for you. ANOVA is a complex topic that cannot be easily explained in this venue.

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