Do campers with trailers really get better mileage per gallon on the highway? The table shows results from a study of the MPG (miles per gallon) of campers with trailers both in the mountains and on desert roads. Assume that the two samples are randomly selected, independent, the population standard deviations are not know and not considered equal. At the 0.05 significance level, test the claim that the mpg on desert roads is better than in the mountains.
Do campers with trailers really get better mileage per gallon on the highway? The table shows results from a study of the MPG (miles per gallon) of campers with trailers both in the mountains and on desert roads. Assume that the two samples are randomly selected, independent, the population standard deviations are not know and not considered equal. At the 0.05 significance level, test the claim that the mpg on desert roads is better than in the mountains.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
![df =
Based on the hypotheses, find the following:
Test Statistic =
(Round to three decimal places.)
Critical value(s) =
|(Round to three decimal places.)
Shade the sampling distribution curve with the correct critical value(s) and shade the critical regions. The
arrows can only be dragged to t-scores that are accurate to 1 place after the decimal point (these values
correspond to the tick marks on the horizontal axis). Select from the drop down menu to shade to the left,
to the right, between or left and right of the t-score(s).
Shade: Left of a value
Click and drag the arrows to adjust the values.
-2 f1 -1
2
-T.5
Decision: Select an answer
Conclusion: Select an answer
better than in the mountains.
| the claim that the mpg on desert roads is](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff9076e7a-57c1-402a-997f-53718f1a9a67%2F2bc36c9b-8352-4254-a5d4-930abe2b15cf%2F92nw1lg_processed.png&w=3840&q=75)
Transcribed Image Text:df =
Based on the hypotheses, find the following:
Test Statistic =
(Round to three decimal places.)
Critical value(s) =
|(Round to three decimal places.)
Shade the sampling distribution curve with the correct critical value(s) and shade the critical regions. The
arrows can only be dragged to t-scores that are accurate to 1 place after the decimal point (these values
correspond to the tick marks on the horizontal axis). Select from the drop down menu to shade to the left,
to the right, between or left and right of the t-score(s).
Shade: Left of a value
Click and drag the arrows to adjust the values.
-2 f1 -1
2
-T.5
Decision: Select an answer
Conclusion: Select an answer
better than in the mountains.
| the claim that the mpg on desert roads is
![Do campers with trailers really get
better mileage per gallon on the
highway?
The table shows results from a study
of the MPG (miles per gallon) of
campers with trailers both in the
mountains and on desert roads. Assume that the two samples are randomly selected, independent, the
population standard deviations are not know and not considered equal. At the 0.05 significance level, test
the claim that the mpg on desert roads is better than in the mountains.
MPG on Desert Roads
30.9
32.6
28.4
25.4
35.1
32.4
31.1
30.9
34.1
35.5
MPG in the Mountains
24
21.2
22.3
24.9
23.2
24.2
25.1
25.8
23.1
28.1
What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.)
Hg: Select an answer v
Select an answer
H: Select an answer
? v Select an answer v
Original Claim = Select an answer v
df =](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff9076e7a-57c1-402a-997f-53718f1a9a67%2F2bc36c9b-8352-4254-a5d4-930abe2b15cf%2Flp8wl8_processed.png&w=3840&q=75)
Transcribed Image Text:Do campers with trailers really get
better mileage per gallon on the
highway?
The table shows results from a study
of the MPG (miles per gallon) of
campers with trailers both in the
mountains and on desert roads. Assume that the two samples are randomly selected, independent, the
population standard deviations are not know and not considered equal. At the 0.05 significance level, test
the claim that the mpg on desert roads is better than in the mountains.
MPG on Desert Roads
30.9
32.6
28.4
25.4
35.1
32.4
31.1
30.9
34.1
35.5
MPG in the Mountains
24
21.2
22.3
24.9
23.2
24.2
25.1
25.8
23.1
28.1
What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.)
Hg: Select an answer v
Select an answer
H: Select an answer
? v Select an answer v
Original Claim = Select an answer v
df =
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