A machine tool operator thinks that fumes emitted in the workshop are instrumental in the low efficiency of the operators. She would like to prove that to

her supervisors through a research study. If you were her, how will you design this

experiment and this research study?

a) How will you follow the concepts of randomization, replication and local

control?

b) What will be Completely Randomised Design (CRD), Randomised Block

Design (RBD) and Latin Square Design (LSD) in this case?​