Question
In: Math
among the thirty largest us cities, the mean one-way commute time to work is 25.8 minutes....
among the thirty largest us 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 is 37.7 minutes. assume the distribution of travel time in new york city follows the normal probability distribution and the standard deviation is 6.7 minutes.
A. What percent of the New York City commutes are for less than 27 minutes? (Round your intermediate calculations and final answer to 2 decimal places)
B. What percent are between 27 and 33 minutes? (Round your intermediate calculations and final answer to 2 decimal places)
C. What percent are between 27 and 47 minutes? (Round your intermediate calculations and final answer to 2 decimal places)
Solutions
milcah answered 1 year agoRelated Solutions
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...
mong the thirty largest U.S. cities, the mean one-way commute time to work is 25.8 minutes....
mong 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 38.8 minutes. Assume the
distribution of travel times in New York City follows the normal
probability distribution and the standard deviation is 7.7 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...
The average number of minutes Americans commute to work is 27.7 minutes. The average commute time...
The average number of minutes Americans commute to work is 27.7
minutes. The average commute time in minutes for 48 cities are as
follows.
Albuquerque
23.6
Jacksonville
26.5
Phoenix
28.6
Atlanta
28.6
Kansas City
23.7
Pittsburgh
25.3
Austin
24.9
Las Vegas
28.7
Portland
26.7
Baltimore
32.4
Little Rock
20.4
Providence
23.9
Boston
32.0
Los Angeles
32.5
Richmond
23.7
Charlotte
26.1
Louisville
21.7
Sacramento
26.1
Chicago
38.4
Memphis
24.1
Salt Lake
City
20.5
Cincinnati
25.2
Miami
31.0
San Antonio
26.4
Cleveland...
In a random sample of 29 people, the mean commute time to work was 32.5 minutes...
In a random sample of 29 people, the mean commute time to work
was 32.5 minutes and the standard deviation was 7.3 minutes. Assume
the population is normally distributed and use a
t-distribution to construct a 95% confidence interval for the
population mean mu. What is the margin of error of mu? Interpret
the results. Round to one decimal place as needed.
In a random sample of 17 people, the mean commute time to work was 30.1 minutes...
In a random sample of 17 people, the mean commute time to work
was 30.1 minutes and the standard deviation was 7.3 minutes. Assume
the population is normally distributed and use a t-distribution to
construct a 99% confidence interval for the population mean mu.
What is the margin of error of mu? Interpret the results.
In a random sample of 18 people, the mean commute time to work was 34.7 minutes...
In a random sample of 18 people, the mean commute time to work
was 34.7 minutes and the standard deviation was 7.3 minutes. Assume
the population is normally distributed and use a t-distribution to
construct a 80% confidence interval for the population mean μ. What
is the margin of error of μ? Interpret the results.
In a random sample of 21 people, the mean commute time to work was 34.1 minutes...
In a random sample of 21 people, the mean commute time to work
was 34.1 minutes and the standard deviation was 7.2 minutes. Assume
the population is normally distributed and use a t-distribution to
construct a 99% confidence interval for the population mean μ.
What is the margin of error of μ? Interpret the results.
The confidence interval for the population mean μ is __,__
(Round to one decimal place as needed.)
The margin of error of μ is __,__...
In a random sample of 22 people, the mean commute time to work was 34.5 minutes...
In a random sample of 22 people, the mean commute time to work
was 34.5 minutes and the standard deviation was 7.2 minutes. Assume
the population is normally distributed and use a t-distribution to
construct a 90% confidence interval for the population mean mu.
What is the margin of error of mu? Interpret the results
In a random sample of 22 people, the mean commute time to work was 34.5 minutes...
In a random sample of 22 people, the mean commute time to work
was 34.5 minutes and the standard deviation was 7.2 minutes. Assume
the population is normally distributed and use a t-distribution to
construct a 90% confidence interval for the population mean mu.
What is the margin of error of mu? Interpret the results
In a random sample of 23 people, the mean commute time to work was 31.2 minutes...
In a random sample of 23 people, the mean commute time to work
was 31.2 minutes and the standard deviation was 7.3 minutes. Assume
the population is normally distributed and use a t-distribution to
construct a 98% confidence interval for the population mean μ.
What is the margin of error of μ? Interpret the results.
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