How to prove that the composition of the chemical mixture before and after treatment is significantly different?
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 pla...