A study of a sample of horseshoe crabs on a Florida island (J. Brockmann, Ethology , vol.
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a. Sketch box plots for the weight distributions of the two groups. Interpret by comparing the groups with respect to shape, center, and variability.
b. Estimate the difference between the mean weights of female crabs who have mates and female crabs who do not have mates.
c. Find the standard error for the estimate in part b.
d. Construct a 90% confidence interval for the difference between the population mean weights, and interpret.
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a The female crabs have a higher median and a bigger spread if they had a mate than if they di...View the full answer
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Related Book For 
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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