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A study investigating rates of fatalities among patients with serious traumatic injuries found that out of...

A study investigating rates of fatalities among patients with serious traumatic injuries found that out of 150 patients transported by helicopter, 19 died. For ground transportation (ambulance) 44 out of 400 died. Provide a 99% confidence interval estimate for the true difference in proportion of death between air and ground transportation.

Referring back to your hypothesis test and confidence interval, explain how they lead to similar conclusions.

math   Statistics-And-Probability   
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