HomeworkLib
Question

A company produces batteries. On average 4% of these batteries fail a performance test. 100 batteries...

A company produces batteries. On average 4% of these batteries fail a performance test. 100 batteries are tested.

What is the probability that the 5th battery fails on the 100th test?

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
A company produces batteries. On average 4% of these batteries fail a performance test. 100 batteries...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

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

  • Asgn: Exponetial pdf's Page 190, #'s 91, 93 #A. Car batteries fail at random wrt milages with an average failur...

    Asgn: Exponetial pdf's Page 190, #'s 91, 93 #A. Car batteries fail at random wrt milages with an average failure rate of 1 in 10 kilometers. Define X as the number of failures in d kilometers, M as distance in kilometers between failures. Give the probability pdf of X, and the pdf of M, give the mean values of both ranom variables and find the probabilities that: (a) at least one battery fails within 3 km, (b) exactly 3 batteries...

  • Question number 7 The ABC battery company claims that their batteries last 100 hours, on average....

    Question number 7 The ABC battery company claims that their batteries last 100 hours, on average. You decide to conduct a test to see if the company's claim is true. You believe that the mean life may be different from the 100 hours the company claims. You decide to collect data on the average battery life (in hours) of a random sample of n 20 batteries. Some of the information related to the hypothesis test is presented below. Test of...

  • The probability that a certain kind of component will survive a shock test is .8. 1. Find the probability that exactly 2 of the next 6 components you test will survive. 2. What is the probability that...

    The probability that a certain kind of component will survive a shock test is .8. 1. Find the probability that exactly 2 of the next 6 components you test will survive. 2. What is the probability that you must test 8 components to find two that fail? 3. What is the probability that the 4th component you test is the first one that fails the test? 4. Out of a group of 100 components, 20 would fail a shock test....

  • A computer company claims that the batteries in its laptops last 4 hours on average. A...

    A computer company claims that the batteries in its laptops last 4 hours on average. A consumer report firm gathered a sample of 16 batteries and conducted tests on this claim. The sample mean was 3 hours 50 minutes, and the sample standard deviation was 20 minutes. Assume that the battery time distribution as normal. Test if the average battery time is shorter than 4 hours at α = 0.05. Use the 5-step method. b) Construct a 95% confidence interval...

  • 8. A phone maker claims that its phones’ batteries last for 13.22 hours on average with...

    8. A phone maker claims that its phones’ batteries last for 13.22 hours on average with standard usage with a standard deviation of 0.57 hours. (a) If we accept that claim, what is the probability that a battery lasts between 12 and 14 hours? (b) Find the 65th percentile for the battery lives- that is, a time for which 65% of the batteries last less than that time. (c) The company has just tested 29 devices. Find the probability that...

  • 1. A battery company claims that their batteries last on average 60 hours. The standard deviation...

    1. A battery company claims that their batteries last on average 60 hours. The standard deviation of the battery life is 4 hours. Assuming that their claim is true, what would be the lowest 5% of values we would get if we were to sample 100 batteries and find their mean life length? 2. A Pew Research Center report indicated that 73% of Americans think the worst is still to come from the effects of COVID-19. A random sample of...

  • Ubercharge advertises that its rechargeable batteries can be recharged over 100 times without any decrease in...

    Ubercharge advertises that its rechargeable batteries can be recharged over 100 times without any decrease in performance (i.e., reduced battery life). An independent firm purchased 50 Ubercharge batteries and recorded the number of times each battery could be recharged until there was a decrease in performance. They reported an average of 96 recharges before a decrease in battery performance with a standard deviation of 3. Which analysis is appropriate for determining whether Ubercharge's claims should be rejected? Assume that all...

  • Quick Start Company makes 12-volt car batteries. After many years of product testing, the company knows...

    Quick Start Company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a Quick Start battery is normally distributed, with a mean of 43.0 months and a standard deviation of 8.9 months. If Quick Start guarantees a full refund on any battery that fails within the 36-month period after purchase, what percentage of its batteries will the company expect to replace? (Round your answer to two decimal places.)

  • A company has developed a new battery, but the average lifetime is unknown. In order to...

    A company has developed a new battery, but the average lifetime is unknown. In order to estimate this average, a sample of 21 batteries is tested and the average lifetime of this sampled batteries is 889 hours and sample standard deviation is 23.5 hours. Here the population of interest is: Olifetime of newly developed batteries O average 21 batteries, which were tested all newly developed batteries by the company Sutorit Answer Tries 0/2 Here the sample is: lifetime of newly...

  • Quick Start Company makes 12-volt car batteries. After many years of product testing, the company knows...

    Quick Start Company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a Quick Start battery is normally distributed, with a mean of 44.6 months and a standard deviation of 8.5 months. (a) If Quick Start guarantees a full refund on any battery that fails within the 36-month period after purchase, what percentage of its batteries will the company expect to replace? (Round your answer to two decimal places.) % (b)...

ADVERTISEMENT
Free Homework Help 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.
ADVERTISEMENT
ADVERTISEMENT