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Distribution Analysis: Tiempo (TTR)

The document summarizes the distribution analysis of a variable called tiempo(TTR) based on a sample of 32 uncensored values. It finds that the data best fits a Weibull distribution with a shape parameter of 1.238 and scale parameter of 111.824. It provides characteristics of the distribution like the mean, median, percentiles and goodness of fit statistics.

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santiago jarquin
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42 views2 pages

Distribution Analysis: Tiempo (TTR)

The document summarizes the distribution analysis of a variable called tiempo(TTR) based on a sample of 32 uncensored values. It finds that the data best fits a Weibull distribution with a shape parameter of 1.238 and scale parameter of 111.824. It provides characteristics of the distribution like the mean, median, percentiles and goodness of fit statistics.

Uploaded by

santiago jarquin
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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Distribution Analysis: tiempo(TTR)

Variable: tiempo(TTR)

Censoring Information Count


Uncensored value 32

Estimation Method: Maximum Likelihood

Distribution: Weibull

Parameter Estimates

Standard 95.0% Normal CI


Parameter Estimate Error Lower Upper
Shape 1.23796 0.159087 0.962324 1.59255
Scale 111.824 16.9397 83.0977 150.480

Log-Likelihood = -179.265

Goodness-of-Fit
Anderson-Darling (adjusted) = 1.217

Characteristics of Distribution

Standard 95.0% Normal CI


Estimate Error Lower Upper
Mean(MTTF) 104.384 15.0569 78.6781 138.490
Standard Deviation 84.8050 14.8665 60.1455 119.575
Median 83.1680 13.9770 59.8281 115.613
First Quartile(Q1) 40.8747 9.38827 26.0584 64.1154
Third Quartile(Q3) 145.587 20.9303 109.837 192.972
Interquartile Range(IQR) 104.712 15.7436 77.9862 140.597

Table of Percentiles

Standard 95.0% Normal CI


Percent Percentile Error Lower Upper
1 2.72105 1.48856 0.931284 7.95043
2 4.78276 2.28360 1.87612 12.1926
3 6.66366 2.91190 2.82979 15.6918
4 8.44195 3.44747 3.79171 18.7954
5 10.1519 3.92123 4.76174 21.6436
6 11.8126 4.34984 5.73990 24.3103
7 13.4363 4.74354 6.72626 26.8403
8 15.0313 5.10922 7.72092 29.2634
9 16.6037 5.45178 8.72401 31.6005
10 18.1582 5.77485 9.73568 33.8673
20 33.2915 8.35202 20.3605 54.4351
30 48.6261 10.3408 32.0519 73.7708
40 64.9954 12.1356 45.0766 93.7161
50 83.1680 13.9770 59.8281 115.613
60 104.199 16.1251 76.9379 141.121
70 129.914 18.9916 97.5485 173.017
80 164.241 23.4538 124.145 217.287
90 219.343 32.3020 164.350 292.738
91 227.416 33.7646 169.997 304.228
92 236.360 35.4313 176.188 317.083
93 246.404 37.3590 183.059 331.668
94 257.879 39.6312 190.810 348.521
95 271.296 42.3788 199.746 368.475
96 287.506 45.8221 210.370 392.925
97 308.090 50.3784 223.610 424.487
98 336.561 56.9943 241.501 469.039
99 383.964 68.7356 270.341 545.342

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