Question: Figure 1 shows a scatterplot of the acidity (pH) for a sample of n=53 Florida lakes vs the average mercury level (ppm) found in fish

Figure 1 shows a scatterplot of the acidity (pH) for a sample of n=53 Florida lakes vs the average mercury level (ppm) found in fish taken from each lake. There appears to be a negative trend in the scatterplot .and we wish to test whether there is signicant evidence of a negative association between pH and mercury levels. 1.4 1.2 1.0 0.3 06 0.4 02

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