12. Carpal tunnel. The painful wrist condition
Chapter 22, Problem 12(choose chapter or problem)
12. Carpal tunnel. The painful wrist condition calledcarpal tunnel syndrome can be treated with surgery orless invasive wrist splints. In September 2002, Time magazinereported on a study of 176 patients. Among the halfthat had surgery, 80% showed improvement after threemonths, but only 54% of those who used the wrist splintsimproved.a) Whats the standard error of the difference in the twoproportions?b) Construct a 95% confidence interval for this difference.c) State an appropriate conclusion.
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