Principles of design of experiments-I: Replication
This blog deals with the basic concept of replication and its functions along with suitable examples. ( reading time 10 min. ) There are three principles of designs of experiments: 1) Replication 2) Randomization 3) Local Control In this blog, we will confine to replication. The repeated application of treatments under investigation is known as replication. Sometimes we use repetition instead of replication. In designs like CRD where the experimental material is homogeneous, we replace the word replication with repetition. Why do we need replication? Let’s understand it by one example. Suppose you are a selector in Olympic selection committee of India looking for a suitable candidate for 10 m Air Rifle event. You have two candidates Abhinav Bindra and CarryMinati . You asked both of them to fire one shot and Abhinav scored 9 while Carry scored 9.6. Will you send Carry for Olympics? Is this scenario sufficient to reach the conclusion? I...