ASQ
CRE · Question #65
50 resisters from a lot of 75,000 were tested. The average was 3,306 ohms with a variance of 21,609 ohm 2 . From this information, we may conclude with 99% confidence, that at least 95% of this lot…
The correct answer is C. 2927 - 3,685 ohms. See the full explanation below for the reasoning.
Data Collection and Use
Question
50 resisters from a lot of 75,000 were tested. The average was 3,306 ohms with a variance of 21,609 ohm 2 . From this information, we may conclude with 99% confidence, that at least 95% of this lot will have resistance values in the range of
Options
- A3,012 - 3,600 ohms
- B2,865 - 3,747 ohms
- C2927 - 3,685 ohms
- D2,846 - 3,766 ohms
How the community answered
(55 responses)- A9% (5)
- B4% (2)
- C71% (39)
- D16% (9)
Topics
#tolerance intervals#confidence interval#statistical sampling#normal distribution
Community Discussion
No community discussion yet for this question.