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In a study published in a​ journal, occupational accidents at three construction sites in a country were monitored. The total numbers of accidents at the three randomly selected sites were 52​, 105​, and 38. Summary statistics for these three sites​ are: x=65 and s=35.3. Suppose an occupational safety inspector claims that the average number of occupational accidents at all of the​ country's construction sites is less than 71.   a. Set up the null and alternative hypotheses for the test. Choose the correct answer below.     A. H0​: μ=65 vs. Ha​: μ<65   B. H0​: μ≥71 vs. Ha​: μ<71   C. H0​: μ=71 vs. Ha​: μ≠71   D. H0​: μ=71 vs. Ha​: μ>71   E. H0​: μ=65 vs. Ha​: μ≠65   F. H0​: μ=71 vs. Ha​: μ<

In a study published in a​ journal, occupational accidents at three construction sites in a country were monitored. The total numbers of accidents at the three randomly selected sites were 52​, 105​, and 38. Summary statistics for these three sites​ are: x=65 and s=35.3. Suppose an occupational safety inspector claims that the average number of occupational accidents at all of the​ country's construction sites is less than 71.   a. Set up the null and alternative hypotheses for the test. Choose the correct answer below.     A. H0​: μ=65 vs. Ha​: μ<65   B. H0​: μ≥71 vs. Ha​: μ<71   C. H0​: μ=71 vs. Ha​: μ≠71   D. H0​: μ=71 vs. Ha​: μ>71   E. H0​: μ=65 vs. Ha​: μ≠65   F. H0​: μ=71 vs. Ha​: μ<

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Question
In a study published in a​ journal, occupational accidents at three construction sites in a country were monitored. The total numbers of accidents at the three randomly selected sites were
52​,
105​,
and
38.
Summary statistics for these three sites​ are:
x=65
and
s=35.3.
Suppose an occupational safety inspector claims that the average number of occupational accidents at all of the​ country's construction sites is less than
71.
 
a. Set up the null and alternative hypotheses for the test. Choose the correct answer below.
 
 
A.
H0​:
μ=65
vs.
Ha​:
μ<65
 
B.
H0​:
μ≥71
vs.
Ha​:
μ<71
 
C.
H0​:
μ=71
vs.
Ha​:
μ≠71
 
D.
H0​:
μ=71
vs.
Ha​:
μ>71
 
E.
H0​:
μ=65
vs.
Ha​:
μ≠65
 
F.
H0​:
μ=71
vs.
Ha​:
μ<

 

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Follow-up Question
Find the rejection region for the test using
α=0.05.
Select the correct choice below and fill in the answer​ box(es) within your choice.
​(Round to two decimal places as​ needed.)
 
 
A.
t>enter your response here
 
B.
t<enter your response here
or
t>enter your response here
 
C.
t<enter your response here

 

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Follow-up Question
b. Find the rejection region for the test using
α=0.05.
Select the correct choice below and fill in the answer​ box(es) within your choice.
​(Round to two decimal places as​ needed.)
 
 
A.
t>enter your response here
 
B.
t<enter your response here
or
t>enter your response here
 
C.
t<enter your response here

 

Solution
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