4 elements of design7/6/2023 ![]() ![]() P(A)= 4/12, P(B)= 4/12, and P(C)=4/12, meaning that Treatment A, B, and C have equal chances of its selection.īy replication, we mean that repetition of the basic experiments. Note from the design elements 1, 7, 9, 12 are reserved for treatment A, element 3, 6, 8 and 11 are reserved for Treatment B and elements 2, 4, 5 and 10 are reserved for Treatment C. Replication means that each treatment will appear 4 times as r = 4. For example, if number of treatment = 3 (say, A, B, and C) and replication = r = 4, then the number of elements = t * r = 3 * 4 = 12 = n. The random process implies that every possible allotment of treatments has the same probability. Randomization is the random process of assigning treatments to the experimental units. Randomization is the cornerstone underlying the use of statistical methods in experimental designs.
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