A life test of 10 small motors with a newly designed insulator has been performed. The following data are obtained. a) Use the data to perform a total-time-on-test plot. b) Use the data to fit a lognormal pdf using the plotting method. Comment on the fit and determine the distribution's parameters from the plot. Motor No. Failure Time (h) 1 1175 2 1200 3 1400 4 1450 5 6 1580 1870 7 1930 8 9 10 2120 2180 2430
A life test of 10 small motors with a newly designed insulator has been performed. The following data are obtained. a) Use the data to perform a total-time-on-test plot. b) Use the data to fit a lognormal pdf using the plotting method. Comment on the fit and determine the distribution's parameters from the plot. Motor No. Failure Time (h) 1 1175 2 1200 3 1400 4 1450 5 6 1580 1870 7 1930 8 9 10 2120 2180 2430
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Problem 1P
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Question
![1. A life test of 10 small motors with a newly designed insulator has been performed. The following
data are obtained. a) Use the data to perform a total-time-on-test plot. b) Use the data to fit a
lognormal pdf using the plotting method. Comment on the fit and determine the distribution's
parameters from the plot.
Motor No.
Failure Time (h)
1
2
1175 1200
3
1400
4
5
1450 1580
6
1870
7
1930
8
9
10
2120 2180 2430](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5fef8308-1d4b-42ec-a94f-867561a3203c%2F6f83a9f9-5da6-4bd7-acef-025fabe5dbe4%2Fgpa8at_processed.png&w=3840&q=75)
Transcribed Image Text:1. A life test of 10 small motors with a newly designed insulator has been performed. The following
data are obtained. a) Use the data to perform a total-time-on-test plot. b) Use the data to fit a
lognormal pdf using the plotting method. Comment on the fit and determine the distribution's
parameters from the plot.
Motor No.
Failure Time (h)
1
2
1175 1200
3
1400
4
5
1450 1580
6
1870
7
1930
8
9
10
2120 2180 2430
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