Question

Refer Exercise 12.35 Fit a single model to the data that will relate x, the soil mercury content. To y, the plant mercury contents, with separate intercepts and slopes for the three crops.
a. Does there appear to be a difference in slopes for the three crops?
b. Does there appear to be a difference in intercepts for the three crops?
c. Does a first-order model appear to provide an adequate fit to the data?
In exercise


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  • CreatedNovember 21, 2015
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