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A data set includes data from 400 random tornadoes. The display from technology available below results from using the t

Posted: Thu May 05, 2022 9:00 pm
by answerhappygod
A data set includes data from
400
random tornadoes. The display from technology available below
results from using the tornado lengths​ (miles) to test the
claim that the mean tornado length is greater than
2.1
miles. Use a
0.05
significance level. Identify the null and
alternative​ hypotheses, test​ statistic, P-value, and
state the final conclusion that addresses the original claim.
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Question content area bottom
Part 1
Assuming all conditions for conducting a hypothesis test
are​ met, what are the null and
alternative​ hypotheses?
A.
H0​:
μ<2.1
miles
H1​:
μ=2.1
miles
B.
H0​:
μ=2.1
miles
H1​:
μ≠2.1
miles
C.
H0​:
μ=2.1
miles
H1​:
μ<2.1
miles
D.
H0​:
μ=2.1
miles
H1​:
μ>2.1
milesYour answer is correct.
Part 2
Identify the test statistic.
enter your response here
​(Round to two decimal places as​ needed.)
Hypothesis test​ results:
μ
H0
μ=2.1
HA
μ>2.1
Variable
Sample Mean
Std. Err.
DF
​T-Stat
​P-value
Length
2.34414
0.258482
399
0.944515
0.1727