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Design the following experiments if possible. (1) A BIBD with 5 treatments, 4 blocks, 3 treatments per block. (2) A BIBD with 6 treatments, 4 blocks, 3 treatments per block (3) A BIBD with 5 treatments, X blocks, 3 treatments per block (For this question, you 4. must first give an appropriate value for X).
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