Two Hospital Emergency Rooms Use Different Procedures for Triage of Their

question 69

Multiple Choice

Two hospital emergency rooms use different procedures for triage of their patients.We want to test the claim that the mean waiting time of patients is the same for both hospitals.The 40 randomly selected subjects from one hospital produce a mean of 18.3 minutes.The 50 randomly selected patients from the other hospital produce a mean of 25.31 minutes.Assume a $\sigma$ _a = 2.1 minutes and $\sigma$ _b = 2.92 minutes.What do you conclude about the waiting time for patients in the two hospitals testing at $\alpha$ = .001?

• A)There is a significant difference in waiting times
• B)There is no significant difference in waiting times

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Definitions:

Method Of Elimination

A technique for solving systems of equations by removing variables to find a solution that satisfies all equations simultaneously.

Infinitely Many Solutions

A situation where there are limitless solutions that satisfy an equation or system of equations.

Method Of Elimination

A technique for solving systems of equations by eliminating one variable at a time to find the values of the others.

Fractions

Numerical quantities that represent a part of a whole, typically in the form of 'numerator/denominator'.