Question

.. 17.7 A manufacturer of touch screens for tablets wants a MTBF of at least 50 000 hours. Recent test results for 10 units were one failure at 10 000 hrs, another at 25 000 hrs, and two more at 45 000 hrs. The remaining units were still running at 60 000 hours. Determine the following: a) Percentage of failures b) Number of failures per unit-hour c) MTBF at this point in the testing

Name: .. 17.7 A manufacturer of touch screens for tablets wants a MTBF of at least 50 000 hours. Recent test results for 10 units were one failure at 10 000 hrs, another at 25 000 hrs, and two more at 45 000 hrs. The remaining units were still running at 60 000 hours. Determine the following: a) Percentage of failures b) Number of failures per unit-hour c) MTBF at this point in the testing
Uploaded: 2023-11-15T23:42:18-08:00
Duration: 2 min 23 s
Channel: Supreeta N
Description: .. 17.7 A manufacturer of touch screens for tablets wants a MTBF of at least 50 000 hours. Recent test results for 10 units were one failure at 10 000 hrs, another at 25 000 hrs, and two more at 45 000 hrs. The remaining units were still running at 60 000 hours. Determine the following: a) Percentage of failures b) Number of failures per unit-hour c) MTBF at this point in the testing

          .. 17.7 A manufacturer of touch screens for tablets wants a MTBF of at least 50 000 hours. Recent test results for 10 units were one failure at 10 000 hrs, another at 25 000 hrs, and two more at 45 000 hrs. The remaining units were still running at 60 000 hours. Determine the following: a) Percentage of failures b) Number of failures per unit-hour c) MTBF at this point in the testing

.. 17.7 A manufacturer of touch screens for tablets wants a MTBF of at least 50 000 hours. Recent test results for 10 units were one failure at 10 000 hrs, another at 25 000 hrs, and two more at 45 000 hrs. The remaining units were still running at 60 000 hours. Determine the following: a) Percentage of failures b) Number of failures per unit-hour c) MTBF at this point in the testing

Added by Stephen C.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Supreeta N

11/15/2023

Step 1

Failures at 10,000 hr, 25,000 hr, 45,000 hr, 45,000 hr (4 failures). The remaining 6 units are still running at 60,000 hr (right-censored). Show more…

Show all steps

Thanks for your feedback!

*. , 17.7 A manufacturer of touch screens for tablets wants a MTBF of at least 50000 hours. Recent test results for 10 units were one failure at 10000hrs, another at 25000hrs, and two more at 45000 hrs. The remaining units were still running at 60000 hours. Determine the following: a) Percentage of failures b) Number of failures per unit-hour c) MTBF at this point in the testing 17.7 A manufacturer of touch screens for tablets wants a MTBF of at least 50 000 hours. Recent test results for 10 units were one failure at 10 000 hrs, another at 25 000 hrs, and two more at 45 000 hrs. The remaining units were still running at 60 000 hours. Determine the following: a) Percentage of failures b) Number of failures per unit-hour c) MTBF at this point in the testing