Homework Help Question & Answers

The quality control manager at a computer manufacturing company believes that the mean life of a...

The quality control manager at a computer manufacturing company believes that the mean life of a computer is 105 months, with a variance of 81 If he is correct, what is the probability that the mean of a sample of 70 computers would differ from the population mean by less than 1.9 months? Round your answer to four decimal places.

The quality control manager at a computer manufacturing company believes that the mean life of a computer is 105 months, with a variance of 81 If he is correct, what is the probability that the mean of a sample of 70 computers would differ from the population mean by less than 1.9 months? Round your answer to four decimal places.
0 0
Report
Answer #1

G?iven チ○ , Now = o, o 384 「using takle P (X L x2 103.1 ) =0.03841 Ans:

Report
Answer #2

The solution above is not complete. The complete soltion is to consider both side of (-1.77 and +1.77) if you really read the question it says the probability differ from the mean and mean has two sides.

Know the answer?
Add Answer to:
The quality control manager at a computer manufacturing company believes that the mean life of a...
Your Answer: Your Name: What's your source?
Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
Free Homework App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.