Two hospital emergency rooms use different procedures for triage of their patients. A local health care...

Two hospital emergency rooms use different procedures for triage of their patients. A local health care provider conducted a study to determine if there is a significant difference in the mean waiting time of patients for both hospitals. The 40 randomly selected subjects from Medina General Hospital (population 1) produce a mean waiting time of 18.3 minutes and a standard deviation of 2.1 minutes. The 50 randomly selected patients from Southwest General Hospital (population 2) produce a mean waiting time of 19.2 minutes and a standard deviation of 2.92 minutes. Using a significance level of α = .02, the critical value(s) for rejecting the null hypothesis is(are) -2.33 ±1.988 +2.33 -2.37 ±2.33 +2.37 ±2.37 +1.988 -1.988

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milcah answered 9 months ago

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