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For the study in question #5, (to compare the lasting quality of 3 different paints (P1, P2, P3) being considered for lane marking on highways with 12 sections of highway available for testing), specify a different design that might be used and explain why it might be less efficient or more efficient.

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Answer #1

We can use randomized block design for making comparisons between these three paints.

As there are 12 plots, then we can divide it into 3 blocks and one block contain 4 plots.

Apply RBD we can get the effects of 3 paints.

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