Chapter 9, Section 1, Exercise 022 Alkalinity in Lakes as a Predictor of Mercury

Question

Chapter 9, Section 1, Exercise 022 Alkalinity in Lakes as a Predictor of Mercury in Fish The FloridaLakes dataset includes data on 53 lakes in Florida. A scatterplot of Alkalinity (concentration of calcium carbonate in mg/L) and AvgMercury (average mercury level for a sample of fish from each lake) is shown below 15 1.3 1.1 0.9 0.7 0.51:.. 0.1 -0.1 0 15 30 45 60 75 90 105 120 Alkalinity Judging from the scatterplot, should we have any concerns about fitting this data to a linear model? Click here for the dataset associated with this question. Yes No

Explanation / Answer

Judging from the scatter plot the data seems to follow a exponential trend rather than linear one. So the answer is YES

There are concerns about the fitting this data into linear model.

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