For the alligator food choice example (Section 6.1.2), use
the model fit to estimate an odds ratio...

Question

For the alligator food choice example (Section 6.1.2), use
the model fit to estimate an odds ratio that describes the effect of length on
primary food choice being either invertebrate or other.

Table 6.5, available in the Alligators2 data file at the
text website, displays primary food choice for a sample of alligators,
classified by length (≤2.3 meters, >2.3 meters) and by the lake in
Florida in which they were caught. Fit a model to describe the effects of
length and lake on primary food choice. Report the prediction equations, with
fish as the baseline category. Interpret the effect of length on the choice
between invertebrates and fish.

Table 6.5

Robert · Accepted Answer

Because the exponential of the estimate of fish (i.e.,.) is 0.96, the estimated odds ratio that describes length's effect on primary food choice of "inverte
ate", or "other" is 0.8996. [exp(0.1101)] = 0.896, the same result as in the odds ratio estimation section.

For the alligator food choice example (Section 6.1.2), use the model fit to estimate an odds ratio that describes the effect of length on primary food choice being either invertebrate or...

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