Mathematics, 19.03.2021 18:20, QueenNerdy889
An ecologist is examining whether the number of fish caught in a large river basin has changed since a fire burned some of the surrounding forested area and vegetation along the river. Data in the form of fishing reports was available for a five-year period before the fire. From a random sample of 195 fishing reports before the fire, the mean catch was 6.3 fish with a standard deviation of 1.6. In a random sample of 143 reports three years after the fire, the mean catch was 7.1 fish with a standard deviation of 2.1.
Required:
What represents the standard error of the difference in the mean number of fish caught before and after the fire?
Answers: 1
Mathematics, 21.06.2019 17:00, joshuag5365
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Which expression is equivalent to the square root of 2 multipllied by 5 divided by 18
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