The Crabs2 data file at the text website shows several variables that may be associated with =...

Question

The Crabs2 data file at the text website shows several variables that may be associated with  = whether a female horseshoe crab is monandrous (eggs fertilized by a single male crab) or polyandrous (eggs fertilized by multiple males). Using year of observation, Fcolor = the female crab’s color (1 = dark, 3 = medium, 5 = light), Fsurf = her surface condition (values 1, 2, 3, 4, 5 with lower values representing worse), FCW = female’s carapace width, AMCW = attached male’s carapace width, AMcolor = attached male’s color, and AMsurf = attached male’s surface condition, conduct a logistic model-building process. Prepare a report summarizing this process, with edited software output as an appendix. Interpret results for your chosen model.

Vikas · Accepted Answer

REPORT
Introduction: 
The goal of this analysis is to investigate the potential factors that influence whether a female horseshoe crab is monandrous or polyandrous. The data is taken from the Crabs2 dataset and includes variables such as year of observation, female color, female surface condition, female carapace width, male carapace width, male color, and male surface condition.
Methodology: 
We will conduct a logistic regression analysis to identify which variables are significantly associated with whether a female crab is monandrous or polyandrous. We will begin with a full model that includes all predictor variables and then use stepwise selection methods to identify the most parsimonious model.
Results: 
After running the full model, we found that Fcolor, Fsurf, FCW, AMCW, and AMcolor were significant predictors of whether a female crab is monandrous or polyandrous.

The Crabs2 data file at the text website shows several variables that may be associated with = whether a female horseshoe crab is monandrous (eggs fertilized by a single male crab) or polyandrous...

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