Lefties A random sample of 760 subjects was obtained, and each was tested for left-hand writing. Results are in the table below (based on data from “The Left-Handed: Their Sinister History,” by Elaine Fowler Costas, Education Resources Information Center, Paper 399519).

Use a 0.05 significance level to test the claim that left-handedness is independent of gender.

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Writes with Left Hand? Yes. No Male 23 217 Female 65 455