Protecting ultramarathon runners. Exercise 9.37 (page 232) describes anexperiment
Chapter 0, Problem 15.17(choose chapter or problem)
Protecting ultramarathon runners. Exercise 9.37 (page 232) describes anexperiment designed to learn whether taking vitamin C reduces respiratoryinfections among ultramarathon runners. The report of the study said:Sixty-eight percent of the runners in the placebo group reported the development ofsymptoms of upper respiratory tract infection after the race; this was significantlymore (P < 0.01) than that reported by the vitamin Csupplemented group(33%).(a) Explain to someone who knows no statistics why significantly more meansthere is good reason to think that vitamin C works.(b) Now explain more exactly: what does P < 0.01 mean?
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