you decide that you want to examine the lead concentrations in
blue crabs in the Chesapeake...
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you decide that you want to examine the lead concentrations inblue crabs in the Chesapeake Bay. Before you collect the crabs, youwould like to determine how many crabs should be in your sample.You decide on a Type I error rate of 0.05 and want to achieve powerof 0.80. Based on previous studies you assume a population standarddeviation of 0.10 ug Pb/g crab. You want to be able to detect aneffect size of 0.01 ug Pb/g crab (assume a one-sided test). Howmany crabs should you include in your random sample?
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3.6 Ratings (685 Votes)
Level of Significance 005 std dev
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