A random sample of n = 15 heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0, 1.5, 6.0, 1.9, 5.1, 0.4, 1.0, 5.3, 15.7, 0.9 , 4.8, 0.9, 12.4, 5.3, 0.6 (a) Assume that the lifetime distribution is exponential and use an argument parallel to that of this example to obtain a 95% CI for the expected (true average) lifetime. (Round your answers to two decimal places. (c) What is a 95% CI for the standard deviation of the lifetime distribution? [Hint: What is the standard deviation of an exponential random variable?] (Round your answers to two decimal places.)
A random sample of n = 15 heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0, 1.5, 6.0, 1.9, 5.1, 0.4, 1.0, 5.3, 15.7, 0.9 , 4.8, 0.9, 12.4, 5.3, 0.6 (a) Assume that the lifetime distribution is exponential and use an argument parallel to that of this example to obtain a 95% CI for the expected (true average) lifetime. (Round your answers to two decimal places. (c) What is a 95% CI for the standard deviation of the lifetime distribution? [Hint: What is the standard deviation of an exponential random variable?] (Round your answers to two decimal places.)
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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A random sample of n = 15 heat pumps of a certain type yielded the following observations on lifetime (in years):
2.0, 1.5, 6.0, 1.9, 5.1, 0.4, 1.0, 5.3, 15.7, 0.9 , 4.8, 0.9, 12.4, 5.3, 0.6
(a) Assume that the lifetime distribution is exponential and use an argument parallel to that of this example to obtain a 95% CI for the expected (true average) lifetime. (Round your answers to two decimal places.
(c) What is a 95% CI for the standard deviation of the lifetime distribution? [Hint: What is the standard deviation of an exponential random variable?] (Round your answers to two decimal places.)
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