The Environmental Protection Agency (EPA) has collected data on LC50 measurements (concentrations that kill 50% of test animals) for certain chemicals likely to be found in freshwater rivers and lakes. (See Exercise 7.13 for additional details.) For certain species of fish, the LC50 measurements (in parts per million) for DDT in 12 experiments were as follows:
Estimate the true mean LC50 for DDT with confidence coefficient .90. Assume that the LC50 measurements have an approximately
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Chapter 8 Solutions
Mathematical Statistics with Applications
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