5. An ambulance service claims that it takes on the average 8.9 minutes to reach its destination in emergency calls. To check on this claim, the agency which licenses ambulance services has them timed on 50 emergency calls, getting a mean of 9.3 minutes with a standard deviation of 1.6 minutes. What can they conclude at the level of significance a = 0.05?
5. An ambulance service claims that it takes on the average 8.9 minutes to reach its destination in emergency calls. To check on this claim, the agency which licenses ambulance services has them timed on 50 emergency calls, getting a mean of 9.3 minutes with a standard deviation of 1.6 minutes. What can they conclude at the level of significance a = 0.05?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Please see the image and answer all questions detailly, clearly, and without mistakes. please help me, don't blindly copy from internet please, i need true help only. thanks
Transcribed Image Text:5. An ambulance service claims that it takes on the average 8.9 minutes to reach its destination in
emergency calls. To check on this claim, the agency which licenses ambulance services has
them timed on 50 emergency calls, getting a mean of 9.3 minutes with a standard deviation of
1.6 minutes. What can they conclude at the level of significance a = 0.05?
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