Question

6. A recent study examined the one-way commute times in the 30 largest cities in the United States. The longest one-way travel time is in New York City, where the mean time is 39.7 minutes. Assume the distribution of travel times in NYC follows the normal distribution and the standard deviation is 7.5 minutes. (a) What percent of the New York City commutes are for less than 30 minutes? Explain every step of your work. Use the z-table found in Appendix B of your textbook. (b) What percent of commutes in NYC are between 30 and 35 minutes? Explain every step of your work. Use the z-table found in Appendix B of your textbook. (c) What percent of commutes are between 30 and 50 minutes? Explain every step of your work. Use the z-table found in Appendix B of your textbook.

Answer #1

6. A recent study examined the one-way commute times in the 30
largest cities in the United States. The longest one-way travel
time is in New York City, where the mean time is 39.7 minutes.
Assume the distribution of travel times in NYC follows the normal
distribution and the standard deviation is 7.5 minutes.
(a) What percent of the New York City commutes are for less than
30 minutes? Explain every step of your work. Use the z-table found
in...

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 U.S. cities with a population of more than 250,000
the mean one-way commute
to work is 25 minutes. The longest one-way travel time is
New York City, where the
mean time is 40 minutes. Assume the distribution of travel
times in New York City
follows the normal probability distribution and the
standard deviation is 7.5 minutes.
a. What percent of the New York City commutes are for less
than 30 minutes?
b. What percent are between 30 and 35...

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.
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.
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.
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.
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 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...

Question 6 (1 point)
Suppose that one-way commute times in a particular city are
normally distributed with a mean of 26.75 minutes and a standard
deviation of 2.216 minutes. Would it be unusual for a commute time
to be below 37 minutes?
Question 6 options:
1)
It is impossible for this value to occur
with this distribution of data.
2)
The value is unusual.
3)
The value is not unusual.
4)
We do not have enough information to
determine if...

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