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 35.1 34.1 32.6 28.4 25.4 32.4 31.1 30.9 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.) Họ: Select an answer v ? v Select an answer ♥ H;: Select an answer Original Claim = Select an answer Select an answer ♥ df =

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Enter the critical value, along with the significance level and degrees of freedom x?(a,dn below the
graph. (Graph is for illustration only. No need to shade.)
X²- Distribution
0.12
0.1
0.08
0.06
0.04
0.02
X2
(Round to three decimal places.)
Test Statistic =
(Round to three decimal places.)
p-value-
(Round to four decimal places.)
Decision: Select an answer
Conclusion: Select an answer
on the seven days with equal frequency.
v the claim that the number of inches occur
Probability
103
60T
115
121
127
133
Transcribed Image Text:Enter the critical value, along with the significance level and degrees of freedom x?(a,dn below the graph. (Graph is for illustration only. No need to shade.) X²- Distribution 0.12 0.1 0.08 0.06 0.04 0.02 X2 (Round to three decimal places.) Test Statistic = (Round to three decimal places.) p-value- (Round to four decimal places.) Decision: Select an answer Conclusion: Select an answer on the seven days with equal frequency. v the claim that the number of inches occur Probability 103 60T 115 121 127 133
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 =
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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