Failure data for mechanical seals were collected as shown in the Table. Analyse the data and propose an appropriate distribution. What are the MTTF of the mechanical seal? Failure-No TTF-(Days) Failure-No TTF-(Days)101114012012015030150130160g20140500g50230150520x100g168530g105g178550g80110E188570g120190590x10130x200610x

Ans: MTTF= Total number of days/Total number of Failure = (7 + 12 + 15 + 20 + 23 + 100 + 105 + 110 +…

Answered: Failure-No TTF (Days) Failure-No…

Failure-No TTF (Days) Failure-No TTF-(Days) 10 11g 140 128 120 150 30 150 138 160g 200 140 500g 50 230 150 520g 100g 168 530g 78 105 178 550g 80 110E 188 570g 120 198 590x 10 130g 200 610x

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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Question

Failure data for mechanical seals were collected as shown in the Table. Analyse the data and propose an appropriate distribution. What are the MTTF of the mechanical seal?

Failure-No TTF-(Days) Failure-No TTF-(Days)
10
11
140
120
120
150
30
150
130
160g
20
140
500g
50
230
150
520x
100g
168
530g
105g
178
550g
80
110E
188
570g
120
190
590x
10
130x
200
610x

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