ZuoTi.Pro
Question

A manufacturer of tires wants to advertise a mileage interval that excludes no more than 10% of the mileage on tires he sells. All he knows is that, for a large number of tires tested, the mean mileage was 25,000 miles, and the standard deviation was 4000 miles. What interval would you suggest? give the lower bound on the probability that the mileage for a randomly

selected tire will fall between 24000 and 26000 miles.

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

en -tat- no more than to ト4 the ㎡leage Dn-Rres he rela LDOD X-SD x- aSooc uooo yDoD 4000 x-arooo ) 一 ,.lo $009 QDoO -1 yoo0

0 0
Add a comment
Know the answer?
Add Answer to:
give the lower bound on the probability that the mileage for a randomly selected tire will...
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

  • The mileage that car owners get with a certain kind of radial tire is normally distributed...

    The mileage that car owners get with a certain kind of radial tire is normally distributed with a mean of 70,000 miles. If 97.725% of these tires lasted less than 78,000 miles, please calculate the standard deviation for the tire mileage. [Note: Please round your result for the standard deviation to the nearest integer.]                                                               [2 points] What is the probability a randomly selected tire of this type will last 65,000 miles? Please justify your answer.                                                                        [1 point] Calculate the probability...

  • 1. Suppose that a tire manufacturer believes that the lifetimes of its tires follow a normal...

    1. Suppose that a tire manufacturer believes that the lifetimes of its tires follow a normal distribution with mean 50,000 miles and standard deviation 5,000 miles. a) Determine the probability that a randomly selected tire lasts for more than 57,500 miles. Also express this probability in terms of the function phi, the cdf of a standard normal distribution. b) Determine the mileage such that only 25% of all tires last for longer than the mileage you are determining. Also report...

  • [6-34] The manufacturer of a new fiberglass tire claims that its average life will be at...

    [6-34] The manufacturer of a new fiberglass tire claims that its average life will be at least 40,000 miles. To verify this claim, sample of 15 tires are tested. Sample mean was 41.1 (in 1000 miles), and sample standard deviation was 2.50. Assuming the measurements were random sample from a Normal distribution, calculate 95% one-sided confidence interval for true mean tire life. Choose lower-bound or upper-bound, whichever is appropriate. (Round to 2 decimals.) Your Answer: Answer

  • Warranty for Alpha Tires 1. Introduction Alpha Tire Company wishes to offer a warranty for their...

    Warranty for Alpha Tires 1. Introduction Alpha Tire Company wishes to offer a warranty for their tires. In order to perform an assessment of the tires' durability, a sample of 41 newly manufactured tires is selected at random. The mileage at which each tire will fail needs to be determined. Rather than driving the tires around for months until they fail naturally (field test), the tires are installed on a special machine that simulates wear and tear (lab test). The...

  • STATISTICS QUIZ 6 NAME 1. The average life of a brand of automobile tire is 30,000...

    STATISTICS QUIZ 6 NAME 1. The average life of a brand of automobile tire is 30,000 miles, with a standard deviation of 2,800 miles. Ir a tire is randomly selected and tested, find the probability that it will last for more than 34,000 miles. Assume the lifetime of tires is normally distributed 2. If the tires in problem #1 are to be guaranteed, so that only 4% will have to be replaced for having to short a lifetime, how long...

  • 8 StatCrunch. IHE Normal Distribution For 1-3, draw the standard normal curve for each and shade...

    8 StatCrunch. IHE Normal Distribution For 1-3, draw the standard normal curve for each and shade the appropriate region. 1. The area to the left of z 1.04 2. The area between z =-34 and z-1.03 3. Find the area of zz0- 4. Dunlop Tires manufactures a tire with a lifetime that approximately follows a normal distribution with a mean of 70,000 miles and a standard deviation of 4400 miles. a. What proportion of the tires will last for a...

  • NOTE: NEED HELP FINDING TWO QUESTIONS FOR LOWER AND UPPER BOUND 1) The manufacturer of hardness...

    NOTE: NEED HELP FINDING TWO QUESTIONS FOR LOWER AND UPPER BOUND 1) The manufacturer of hardness testing equipment uses​ steel-ball indenters to penetrate metal that is being tested.​ However, the manufacturer thinks it would be better to use a diamond indenter so that all types of metal can be tested. Because of differences between the two types of​ indenters, it is suspected that the two methods will produce different hardness readings. The metal specimens to be tested are large enough...

  • 1) A sample of size 25 is chosen from a population. Assume the probability distribution is...

    1) A sample of size 25 is chosen from a population. Assume the probability distribution is normal. If the mean of the sample is 80 and the standard deviation is 6, find the lower bound of the 99% confidence interval. Round off to three decimal places. 2) A sample of size 36 is chosen from a population. The sample mean is 50 and the standard deviation is 5. Find the upper limit of the 95% confidence interval for the population...

  • The manufacturer of hardness testing equipment uses steel-ball indenters to penetrate metal that is being tested....

    The manufacturer of hardness testing equipment uses steel-ball indenters to penetrate metal that is being tested. However, the manufacturer thinks it would be better to use a diamond indenter so that all types of metal can be tested. Because of differences between the two types of indenters, it is suspected that the two methods will produce different hardness readings. The metal specimens to be tested are large enough so that two indentions can be made. Therefore, the manufacturer uses both...

  • Can Anyone help me with these 7 questions? Questions: Q1. A random sample has been taken...

    Can Anyone help me with these 7 questions? Questions: Q1. A random sample has been taken from a normal distribution and the following confidence intervals constructed using the same data: (38.02, 61.98) and (39.95, 60.05) (a) What is the value of the sample mean? (b) One of these intervals is a 95% CI and the other is a 90% CI. Which one is the 95% CI? Why? Q2. A civil engineer is analyzing the compressive strength of concrete. Compressive strength...

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
ADVERTISEMENT