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MATH302 Week 6 QUIZ WITH 100%
CORRECT ANSWERS 2026 LATEST
UPDATE
Attempt Score
- 95 %
Overall Grade (Highest Attempt)
- 95 %
Question 1 point
A manager wishes to see if the time (in minutes) it takes for their workers
to complete a certain task is faster if they are wearing earbuds. A random
sample of 20 workers' times were collected before and after wearing
earbuds. Test the claim that the time to complete the task will be faster, i.e.
meaning has production increased, at a significance level of α = 0.01
For the context of this problem, μD = μbefore−μafter where the first data
set represents before earbuds and the second data set represents the after
earbuds. Assume the population is normally distributed. The hypotheses
are:
H0: μD = 0
H1: μD > 0
You obtain the following sample data:
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Before
After
68
62.3
72.5
61.6
39.3
21.4
67.7
60.4
38.3
47.9
85.9
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78.6
67.3
75.1
59.8
48.3
72.1
65 79
83
61.7
56.8
57.9
44.7
56.8
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, FOR MORE EXAMS
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50.6
71
63.4
80.6
68.9
59.8
33.9
73.1 79
49.9
38.4
59.2
55.4
FOR MORE EXAMS
EMAIL:
EMAIL:
MATH302 Week 6 QUIZ WITH 100%
CORRECT ANSWERS 2026 LATEST
UPDATE
Attempt Score
- 95 %
Overall Grade (Highest Attempt)
- 95 %
Question 1 point
A manager wishes to see if the time (in minutes) it takes for their workers
to complete a certain task is faster if they are wearing earbuds. A random
sample of 20 workers' times were collected before and after wearing
earbuds. Test the claim that the time to complete the task will be faster, i.e.
meaning has production increased, at a significance level of α = 0.01
For the context of this problem, μD = μbefore−μafter where the first data
set represents before earbuds and the second data set represents the after
earbuds. Assume the population is normally distributed. The hypotheses
are:
H0: μD = 0
H1: μD > 0
You obtain the following sample data:
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EMAIL:
,FOR MORE EXAMS
EMAIL:
Before
After
68
62.3
72.5
61.6
39.3
21.4
67.7
60.4
38.3
47.9
85.9
FOR MORE EXAMS
EMAIL:
,FOR MORE EXAMS
EMAIL:
78.6
67.3
75.1
59.8
48.3
72.1
65 79
83
61.7
56.8
57.9
44.7
56.8
FOR MORE EXAMS
EMAIL:
, FOR MORE EXAMS
EMAIL:
50.6
71
63.4
80.6
68.9
59.8
33.9
73.1 79
49.9
38.4
59.2
55.4
FOR MORE EXAMS
EMAIL:
