The mean unleaded gas prices were compared between Baltimore, MD and Philadelphia, PA. To estimate the difference in the mean, a 95% confidence interval was used and computed to be (.45, .76). What conclusion can be made about the differences in the mean gas prices of the two cities?
The mean unleaded gas prices were compared between Baltimore, MD and Philadelphia, PA. To estimate the difference in the mean, a 95% confidence interval was used and computed to be (.45, .76). What conclusion can be made about the differences in the mean gas prices of the two cities?
A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Can you explain more on why D is correct?
![11:15
AA
A study.240tutoring.com
(140)
The Baltimore, MD sample
displays a lot of variability in the
mean data.
There is no mention of variability in
this problem, or enough information to
come to this conclusion.
The mean gas prices are the same
in the two cities.
The mean gas prices between the
two cities most likely vary by at
least $0.45.
Since the confidence interval is 95%
accurate and begins at $0.45, this is a
strong conclusion.
Back
Next
Correct Choice: D
Your Choice: B](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc074fc7e-4e48-46f1-bfc4-aee6ba4e6262%2F6f2d5fec-a39e-40f6-8eb6-ade9dda0fb27%2F3cduhl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:11:15
AA
A study.240tutoring.com
(140)
The Baltimore, MD sample
displays a lot of variability in the
mean data.
There is no mention of variability in
this problem, or enough information to
come to this conclusion.
The mean gas prices are the same
in the two cities.
The mean gas prices between the
two cities most likely vary by at
least $0.45.
Since the confidence interval is 95%
accurate and begins at $0.45, this is a
strong conclusion.
Back
Next
Correct Choice: D
Your Choice: B
![6:40
AA
A study.240tutoring.com
(L40
+ Return to course
The mean unleaded gas prices were
compared between Baltimore, MD and
Philadelphia, PA. To estimate the difference
in the mean, a 95% confidence interval was
used and computed to be (.45, .76). What
conclusion can be made about the
differences in the mean gas prices of the
two cities?
There are no gas stations in
Baltimore, MD that have the same
gas price for unleaded as a gas
station in Philadelphia, PA.
The Baltimore, MD sample
displays a lot of variability in the
mean data.
Back
Next
Correct Choice: D
Your Choice: B](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc074fc7e-4e48-46f1-bfc4-aee6ba4e6262%2F6f2d5fec-a39e-40f6-8eb6-ade9dda0fb27%2Fek8oidp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:6:40
AA
A study.240tutoring.com
(L40
+ Return to course
The mean unleaded gas prices were
compared between Baltimore, MD and
Philadelphia, PA. To estimate the difference
in the mean, a 95% confidence interval was
used and computed to be (.45, .76). What
conclusion can be made about the
differences in the mean gas prices of the
two cities?
There are no gas stations in
Baltimore, MD that have the same
gas price for unleaded as a gas
station in Philadelphia, PA.
The Baltimore, MD sample
displays a lot of variability in the
mean data.
Back
Next
Correct Choice: D
Your Choice: B
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