ZuoTi.Pro
Question

Suppose commute times in a large city are normally distributed and that 66.60% of commuters in this city take more than...

Suppose commute times in a large city are normally distributed and that 66.60% of commuters in this city take more than 21 minutes to commute one-way. If the standard deviation of such commutes is 6.0 minutes, what is the mean commute?

(Round your answer to 3 decimal places.)

business   finance   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Ans. For the probability of 0.666, the value of Z, we can find from the normal distribution table or Z table i.e. Z=-2.13

We use the value of Z to get the mean value as following:0.666 p=66.60% o=6 minutes for area p=0.666 Z will be z=-2.13 (from the z table ) we know that Z =x -u conare u is the mean -

0 1
Add a comment
Know the answer?
Add Answer to:
Suppose commute times in a large city are normally distributed and that 66.60% of commuters in this city take more than...
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

  • Suppose that one-way commute times in a particular city are normally distributed with a mean of...

    Suppose that one-way commute times in a particular city are normally distributed with a mean of 18.22 minutes and a standard deviation of 1.699 minutes. Would it be unusual for a commute time to be above 21 minutes? 1. The value is unusual. 2.The value is borderline unusual. 3.The value is not unusual.

  • Gradebook ORION Downloadable eTextbook CALCULATOR MESSAGE MY INSTRUCTOR FULL SCREEN PRINTER VERSION «BACK End of Section...

    Gradebook ORION Downloadable eTextbook CALCULATOR MESSAGE MY INSTRUCTOR FULL SCREEN PRINTER VERSION «BACK End of Section Problem 6.15 Suppose commute times in a large city are normally distributed and that 61 deviation of such commutes is 6.1 minutes, what is the mean commute? % of commuters in this city take more than 22 minutes to commute one-way. Ir the standard (Round your answer to 3 decimal places.) Click if you would like to Show Work for this question: Open Show...

  • Suppose that one-way commute times in a particular city are normally distributed with a mean of...

    Suppose that one-way commute times in a particular city are normally distributed with a mean of 19.32 minutes and a standard deviation of 2.364 minutes. Would it be unusual for a commute time to be above 22.9 minutes? Question 6 options: 1) The value is unusual. 2) It is impossible for this value to occur with this distribution of data. 3) We do not have enough information to determine if the value is unusual. 4) The value is not unusual....

  • The commute times for workers in a city are normally distributed with an unknown population mean...

    The commute times for workers in a city are normally distributed with an unknown population mean and standard deviation. If a random sample of 37 workers is taken and results in a sample mean of 31 minutes and sample standard deviation of 5 minutes. Use Excel to find a 95% confidence interval estimate for the population mean using the Student's t-distribution. Round the final answers to two decimal places.

  • Question 6 (1 point) Suppose that one-way commute times in a particular city are normally distributed...

    Question 6 (1 point) Suppose that one-way commute times in a particular city are normally distributed with a mean of 26.71 minutes and a standard deviation of 2.118 minutes. Would it be unusual for a commute time to be between 24.7 and 25.2 minutes? 0 1) A value in this interval is borderline unusual. 2) A value in this interval is unusual. 3) We do not have enough information to determine if a value in this interval is unusual 4)...

  • Question 6 (1 point) Saved Suppose that one-way commute times in a particular city are normally...

    Question 6 (1 point) Saved Suppose that one-way commute times in a particular city are normally distributed with a mean of 18.08 minutes and a standard deviation of 2.661 minutes. Would it be unusual for a commute time to be above 21.6 minutes? 0 1) The value is borderline unusual. 2) We do not have enough information to determine if the value is unusual 3) The value is not unusual 4) It is impossible for this value to occur with...

  • The wait times to see a doctor at a large clinic are normally distributed with a...

    The wait times to see a doctor at a large clinic are normally distributed with a mean of 68.2 minutes and a standard deviation of 14.8 minutes. If a simple random sample of 25 patients is selected, find the probability that the sample mean wait time is more than 75 minutes. Round to four decimal places.

  • The traffic congestion of a large metro area in Texas reported that the mean one way...

    The traffic congestion of a large metro area in Texas reported that the mean one way commute times of employees to the inner city is 75 minutes with the standard deviation of 26 mins samples of size n=40 of these commutes is taken and X is the mean one way commute times for these commuters? a. P(X < 80 mins) b. P(X > 70 mins) c. P(65 < X <73 mins)

  • The amount of time Americans commute to work is normally distributed with mean of 45 minutes...

    The amount of time Americans commute to work is normally distributed with mean of 45 minutes and a standard deviation of 15 minutes. The 25% of Americans with the LONGEST commuting times all get to work in more than how many minutes? You can use two decimal places of accuracy.

  • Among the thirty largest U.S. cities, the mean one-way commute time to work is 25.8 minutes....

    Among the thirty largest U.S. cities, the mean one-way commute time to work is 25.8 minutes. The longest one-way travel time is in New York City, where the mean time is 37.7 minutes. Assume the distribution of travel times in New York City follows the normal probability distribution and the standard deviation is 6.7 minutes. Use Appendix B.3. What percent of the New York City commutes are for less than 27 minutes? (Round your intermediate calculations and final answer to...

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