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Mixture design in Minitab, calculate coefficient and P-value

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joybaker

Chemical
Mar 3, 2016
2
Hi everyone,
Does any of you used minitab for mixture design before.
I used it for a 4-component miture design. I wonder how they calculated the coefficient value for each component and 2-way and 3-way interactions. Also I don't quite understand only interactions have P-value, but single factors don't have.
I check Minitab guidebook, but I didn't find any answer for that.

A typical result sheet look like this:
1_ljti0q.jpg
 
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Not sure what the above answers for.
But I know what is P-value, I just want to understand how they calculate the coefficient in this particular mixture design. and the reason why the single factors has no p-value, but have coefficient
 
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