chem e : DOE

4) A chemical reaction was run using two levels each of temperature (A), reagent concentration (B) and pH(C). For each factor, the high level is denoted 1 and the low level is denoted - 1 . The reaction was run twice for each combination of level, and the yield (in percent) was recorded. The results are: a. Calculate the main effects and the interactions, make sure you have replicates =2. i. Show the main effects and interaction charts b. What main effects and interactions, if any are important? i. Show the Pareto Chart c. Do the results change if you use the replicates in your DOE analysis or an average? Repeat with replicates =1 and use the average values between replicates 1 and 2