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Name: The administrator at a local hospital states that on weekends the aver
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Description: The administrator at a local hospital states that on weekends the average wait time for emergency-room visits is 10 minutes. Based on discussions on the length of wait-time to be seen in the ER over a weekend, an employee disputes the administrator's

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The administrator at a local hospital states that on weekends the average wait time for emergency-room visits is 10 minutes. Based on discussions on the length of wait-time to be seen in the ER over a weekend, an employee disputes the administrator's claim. The employee decides to test his hypothesis. Over the course of a few weekends the employee records the wait time for 40 randomly selected patients. The average wait time for these 40 patients is 11 minutes with a standard deviation of 3 minutes. Does the employee have enough evidence to support his claim that the average ER wait time exceeds 10 minutes? He tests at a 5% level of significance.

If the null hypothesis is not rejected, then the employee's conclusion is

there is not sufficient evidence to support the claim that the ER wait times exceed 10 minutes.
there is not sufficient evidence to warrant rejection of the original claim.
there is sufficient evidence to support the claim that the ER wait times exceed 10 minutes.
there is sufficient evidence to warrant rejection of the original claim.

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