Question

Experimental error and dummy variables in Placket-Burman method are linked.

(a) True

(b) False

This question was posed to me in an international level competition.

My enquiry is from Medium Optimization topic in portion Introduction to Fermentation Processes & Media for Industrial Fermentation of Bioprocess Engineering

Answer 1

Right option is (a) True

To explain: Any factors not assigned to a variable can be designated as dummy variables. Alternatively, factors known to not have any effect may be included and designated as dummy variables. The incorporation of dummy variables into an experiment makes it possible to estimate the variance of an effect (experimental error).