Question 450033: Suppose clothing designerwants to come up with ways to make cotton shirts softer. For a completely randomized design, they are considering two different chemicals to apply to the clothing and three different chemical concentrations to use. If the experiments want to replicate each treatment for 25 shirts, how many shirts will they need for this study?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Suppose clothing designer wants to come up with ways to make cotton shirts softer. For a completely randomized design, they are considering two different chemicals to apply to the clothing and three different chemical concentrations to use. If the experiments want to replicate each treatment for 25 shirts, how many shirts will they need for this study?
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There are 2*3 = 6 different combinations of chemical treatments.
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If they test each combination 25 times they will need 150 shirts.
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Cheers,
Stan H.
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