ZuoTi.Pro
Question

A manufacturer of power tools claims that the average amount of time required to assemble their...

A manufacturer of power tools claims that the average amount of time required to assemble their top-of-the-line table saw is 80 minutes with a standard deviation of 40 minutes. Suppose a random sample of 64 purchasers of this table saw is taken. The probability that the sample mean will be greater than 88 minutes is __________. What type of problem is this?

Poisson

Random variable

Sample mean

Sample proportion

Normal

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 manufacturer of power tools claims that the average amount of time required to assemble their...
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

  • A manufacturer of power tools claims that the average amount of time required to assemble their...

    A manufacturer of power tools claims that the average amount of time required to assemble their top-of-the-line table saw is 80 minutes with a standard deviation of 40 minutes. Suppose a random sample of 64 purchasers of this table saw is taken. The probability that the sample mean will be greater than 88 minutes is __________. Which parameters in the problem do the data values (80, 40, 64, 88) represent?

  • A manufacturer of power tools claims that the average amount of time required to assemble their...

    A manufacturer of power tools claims that the average amount of time required to assemble their top-of-the-line table saw is 80 minutes with a standard deviation of 40 minutes. Suppose a random sample of 64 purchasers of this table saw is taken. The probability that the sample mean will be greater than 88 minutes is __________. You should use the finite population correction factor for this problem. True False

  • A manufacturer of power tools believes that the mean amount of time required to assemble their...

    A manufacturer of power tools believes that the mean amount of time required to assemble their top-of-the-line table saw is 80 minutes with a standard deviation of 40 minutes. Suppose a random sample of 64 purchasers of this table saw is taken. The management is planning to use the assembly time in advertising and promotion of the product and the competitors have an average of 90 minutes assembly time. That’s why they are interested in determining the probability that the...

  • Question 7 The time required to assemble an electric motor in a factory is normally distributed...

    Question 7 The time required to assemble an electric motor in a factory is normally distributed with a mean of 16 minutes and a standard deviation of 8 minutes. Required of you: a) What is the probability that a motor selected at random would have taken 17.75 minutes to assemble? b) What is the probability that a motor selected at random would have taken between 10 and 20 minutes to assemble? c) If it is uncertain whether the distribution is...

  • A manufacturer of electronic kits has found that the mean time required for novices to assemble...

    A manufacturer of electronic kits has found that the mean time required for novices to assemble its new circuit tester is 3.1 hours, with a standard deviation of 0.6 hours. A consultant has developed a new instructional booklet intended to reduce the time an inexperienced kit builder will need to assemble the device and the manufacturer needs to decide whether or not to send out the new booklet. The testable hypotheses in this situation are ?0:?=3.1H0:μ=3.1 vs ??:?<3.1HA:μ<3.1. 1. Identify...

  • QUESTION 19 A manufacturer of bike racks for cars claims that the assembly time x for...

    QUESTION 19 A manufacturer of bike racks for cars claims that the assembly time x for a particular model is normally distributed with a mean of 1 hour and a standard deviation of 0.10 hours. Find the probability that it takes at most 1.1 hours to assemble a bike rack of this model. QUESTION 20 The standard error of a statistic used as an estimator of a population parameter is: A. The same value as the population standard deviation. B....

  • The time required to assemble an electronic component is normally distributed with a mean and a...

    The time required to assemble an electronic component is normally distributed with a mean and a standard deviation of 21 minutes and 10 minutes, respectively. [You may find it useful to reference the z table.] a. Find the probability that a randomly picked assembly takes between 13 and 22 minutes. (Round " value to 2 decimal places and final answer to 4 decimal places. Probability b. It is unusual for the assembly time to be above 35 minutes or below...

  • The manufacturer of a new food additive for beef cattle claims that 80% of the animals...

    The manufacturer of a new food additive for beef cattle claims that 80% of the animals fed a diet including this additive should have monthly weight gains in excess of 19 pounds. A large sample of measurements on weight gains for cattle fed this diet exhibits an approximately normal distribution with mean 26 pounds and standard deviation 7 pounds. Do you think the sample information contradicts the manufacturer's claim? (Calculate the probability of a weight gain exceeding 19 pounds.) One...

  • An automotive repair shop has determined that the average service time on an automobile is 2...

    An automotive repair shop has determined that the average service time on an automobile is 2 hours with a standard deviation of 32 minutes. A random sample of 64 services is selected. a. What is the probability that the sample of 64 will have a mean service time greater than 114 minutes? Assume the population consists of 400 services. Determine the standard error of the mean. C. What is the probability that the sample of 64 will have a mean...

  • Ch 6 #10: please assist with answers for a and b:\ The time required to assemble...

    Ch 6 #10: please assist with answers for a and b:\ The time required to assemble an electronic component is normally distributed with a mean and a standard deviation of 22 minutes and 8 minutes, respectively. [You may find it useful to reference the z table.] a. Find the probability that a randomly picked assembly takes between 14 and 26 minutes. (Round "z" value to 2 decimal places and final answer to 4 decimal places.) Probability:______________________ b. It is unusual...

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