Question

The commute time to work in the U.S. has a bell shaped distribution with a population...

The commute time to work in the U.S. has a bell shaped distribution with a population mean of 24.4 minutes and a population standard deviation of 6.5 minutes. (round to two decimal places)

Calculate the z-score corresponding to a commute time of 15 minutes

Calculate the z-score corresponding to a commute time of 42 minutes

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Given that the commute time to work in the U.S. has a bell-shaped distribution with a population mean of =24.4 minutes and a population standard deviation of =6.5 minutes.

The Z score is calculated as:

a) the z-score corresponding to a commute time of X=15 minutes

b)

the z-score corresponding to a commute time of X=42 minutes

0 0
Know the answer?
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
Similar Questions
The commute times (amounts of time it takes people to commute from home to work) for...
The commute times (amounts of time it takes people to commute from home to work) for people who live in a large city are bell-shaped with a mean of 65 minutes and a standard deviation of 9 minutes. Using the Empirical Rule, what is the approximate percentage of commute times in this distribution that are greater than 83 minutes?
In a random sample of 8 ​people, the mean commute time to work was 33.5 minutes...
In a random sample of 8 ​people, the mean commute time to work was 33.5 minutes and the standard deviation was 7.2 minutes. A 90​% confidence interval using the​ t-distribution was calculated to be left parenthesis 28.7 comma 38.3 right parenthesis. After researching commute times to​ work, it was found that the population standard deviation is 9.3 minutes. Find the margin of error and construct a 90​% confidence interval using the standard normal distribution with the appropriate calculations for a...
Among U.S. cities with a population of more than 250,000, the mean one-way commute time to...
Among U.S. cities with a population of more than 250,000, the mean one-way commute time to work is 24.3 minutes. The longest one-way travel time is New York City, where the mean time is 37.5 minutes. Assume the distribution of travel times in New York City follows the normal probability distribution and the standard deviation is 6.5 minutes. 1. What percent of the New York City commutes are for less than 26 minutes? 2. What percent are between 26 and...
In a random sample of 88 ​people, the mean commute time to work was 36.536.5 minutes...
In a random sample of 88 ​people, the mean commute time to work was 36.536.5 minutes and the standard deviation was 7.27.2 minutes. A 9898​% confidence interval using the​ t-distribution was calculated to be left parenthesis 28.9 comma 44.1 right parenthesis(28.9,44.1). After researching commute times to​ work, it was found that the population standard deviation is 8.78.7 minutes. Find the margin of error and construct a 9898​% confidence interval using the standard normal distribution with the appropriate calculations for a...
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 38.5 minutes. Assume the distribution of travel times in New York City follows the normal probability distribution and the standard deviation is 7.2 minutes. Use Appendix B.3. What percent of the New York City commutes are for less than 26 minutes? (Round your intermediate calculations and final answer to...
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 37.9 minutes. Assume the distribution of travel times in New York City follows the normal probability distribution and the standard deviation is 6.9 minutes. What percent of the New York City commutes are for less than 29 minutes? What percent are between 29 and 35 minutes? What percent are...
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. https://deepblue.lib.umich.edu/bitstream/handle/2027.42/112057/103196.pdf?sequence=1&isAllowed=y. 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. What percent of the New York City commutes are for less than 27 minutes? (Round your intermediate calculations and final answer to 2 decimal...
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. https://deepblue.lib.umich.edu/bitstream/handle/2027.42/112057/103196.pdf?sequence=1&isAllowed=y. The longest one-way travel time is in New York City, where the mean time is 38.2 minutes. Assume the distribution of travel times in New York City follows the normal probability distribution and the standard deviation is 7.0 minutes. What percent of the New York City commutes are for less than 28 minutes? (Round your intermediate calculations and final answer to 2 decimal...
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. https://deepblue.lib.umich.edu/bitstream/handle/2027.42/112057/103196.pdf?sequence=1&isAllowed=y. 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. What percent of the New York City commutes are for less than 27 minutes? (Round your intermediate calculations and final answer to 2 decimal...
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. https://deepblue.lib.umich.edu/bitstream/handle/2027.42/112057/103196.pdf?sequence=1&isAllowed=y. 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. What percent of the New York City commutes are for less than 27 minutes? (Round your intermediate calculations and final answer to 2 decimal...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT