Is there any evidence that the population variance in


Biology and Environmental Science

In a recent study conducted by the NOAA, the aerosol light absorption coefficient was measured (in Mm-1) at randomly selected locations in Africa and in South America. The resulting data are summarized in the following table.

Country

Sample size

Sample variance

Africa

10

243.36

South America

21

51.84

Is there any evidence that the population variance in aerosol light absorption coefficient is greater in Africa than in South America? Use a = 0.05 and assume normality.

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Basic Statistics: Is there any evidence that the population variance in
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