We want to test whether the response time for the police during an emergency in Australia meets the target of 12 minutes. To test this hypothesis, we take a sample of the response times for police in all 141 counties of NSW. The mean of the sample times was found to be = 11.7 minutes and the standard deviation was o = 2.5 minutes. What is the p-value? What can you conclude from this p-value? The following information might be useful: P(Z > 0.12) = 0.4522 P(Z > 0.39) 0.3483 P(Z > 1.17) = 0.1210 P(Z > 1.42) = 0.0778 p-value = P(Z > 0.12) = 0.45. We conclude that the population mean response time is less than 12 minutes. p-value = P(Z > 0.39) = 0.35. We conclude that the population mean response time is less than 12 minutes. p-value = minutes. - P(Z < -1.17) = 0.12. p-value = minutes. *P(Z < -1.42) = 0.08. None of the above We conclude that the population mean response time is not less than 12 We conclude that the population mean response time is not less than 12

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Question

Q9

We want to test whether the response time for the police during an emergency in Australia meets
the target of 12 minutes. To test this hypothesis, we take a sample of the response times for police in
all 141 counties of NSW.
The mean of the sample times was found to be = 11.7 minutes and the standard deviation was
minutes.
2.5
What is the p-value? What can you conclude from this p-value?
The following information might be useful:
σ=
P(Z > 0.12) = 0.4522
P(Z > 0.39) = 0.3483
P(Z > 1.17) = 0.1210
P(Z > 1.42) = 0.0778
p-value = P(Z > 0.12)
p-value = P(Z > 0.39) = 0.35. We conclude that the population mean response time is less than 12 minutes.
O p-value = P(Z < -1.17) = 0.12.
minutes.
= 0.45. We conclude that the population mean response time is less than 12 minutes.
O None of the above
We conclude that the population mean response time is not less than 12
O p-value = P(Z < -1.42) = 0.08. We conclude that the population mean response time is not less than 12
minutes.
Transcribed Image Text:We want to test whether the response time for the police during an emergency in Australia meets the target of 12 minutes. To test this hypothesis, we take a sample of the response times for police in all 141 counties of NSW. The mean of the sample times was found to be = 11.7 minutes and the standard deviation was minutes. 2.5 What is the p-value? What can you conclude from this p-value? The following information might be useful: σ= P(Z > 0.12) = 0.4522 P(Z > 0.39) = 0.3483 P(Z > 1.17) = 0.1210 P(Z > 1.42) = 0.0778 p-value = P(Z > 0.12) p-value = P(Z > 0.39) = 0.35. We conclude that the population mean response time is less than 12 minutes. O p-value = P(Z < -1.17) = 0.12. minutes. = 0.45. We conclude that the population mean response time is less than 12 minutes. O None of the above We conclude that the population mean response time is not less than 12 O p-value = P(Z < -1.42) = 0.08. We conclude that the population mean response time is not less than 12 minutes.
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