(a) Describe the following three fundamental principles: (i) randomisation, (ii) replication, and (iii) local control. Explain the importance of these principles with respect to designing statistical experiments. Give suitable illustrations. (b) Explain, with illustrations, the different methods of controlling heterogeneity in field experiments. (c) Discuss how the efficiency of an experiment can be increased by increased replication and lotal control. (d) Define 'experimental error'. What are i

Randomized Block Design in Statistics | Experiment & Example