https://community.jmp.com/t5/Discussions/How-to-prove-that-the-composition-of-the-chemical-mixture-before/m-p/669467#M85756 <P>Hello! I need to show that compositions of chemical mixture before and after treatment are significantly different. Composition is given in weight %, so the total of all components' weight % in the mixture is 100%. This also means that if one component weight % in the mixture decreased after treatment all other component weight % should be increased. Can I use "Test Mean" from the Distribution platform on a ratio like this: Mean of Abs(1-Component_Before/Component_After)? Or should I use Matched Pairs Analysis or something else? Should it be a Non-Parametric test as the analysis errors for each component are different?</P> Fri, 18 Aug 2023 21:14:02 GMT konstantin 2023-08-18T21:14:02Z https://community.jmp.com/t5/Discussions/How-to-prove-that-the-composition-of-the-chemical-mixture-before/m-p/669467#M85756 <P>Hello! I need to show that compositions of chemical mixture before and after treatment are significantly different. Composition is given in weight %, so the total of all components' weight % in the mixture is 100%. This also means that if one component weight % in the mixture decreased after treatment all other component weight % should be increased. Can I use "Test Mean" from the Distribution platform on a ratio like this: Mean of Abs(1-Component_Before/Component_After)? Or should I use Matched Pairs Analysis or something else? Should it be a Non-Parametric test as the analysis errors for each component are different?</P> Fri, 18 Aug 2023 21:14:02 GMT https://community.jmp.com/t5/Discussions/How-to-prove-that-the-composition-of-the-chemical-mixture-before/m-p/669467#M85756 konstantin 2023-08-18T21:14:02Z