Question
In: Statistics and Probability
A psychologist noted that people have more difficulty sleeping in a bright room than in a...
A psychologist noted that people have more difficulty sleeping in a bright room than in a dark room. She measured whether the intensity of the light could predict the time it took a sample of 4 participants to fall asleep. The data for this hypothetical study are listed in the following table.
| Intensity
of Light (in watts) |
Time It
Took to Sleep (in minutes) |
|---|---|
| X | Y |
| 5 | 10 |
| 10 | 18 |
| 20 | 32 |
| 40 | 36 |
Compute an analysis of regression for this hypothetical study.
(Round your answers to two decimal places.)
| Source
of Variation |
SS | df | MS | Fobt |
|---|---|---|---|---|
| Regression | ||||
| Residual (error) | ||||
| Total |
Make a decision to retain or reject the null hypothesis. (Assume
alpha equal to 0.05.)
Retain the null hypothesis.
Reject the null hypothesis.
Solutions
Expert Solution
Above problem is solved using Minitab, Output of Minitab is attached below
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orchestra answered 1 year agoRelated Solutions
A psychologist noted that people have more difficulty sleeping in a bright room than in a...
A psychologist noted that people have more difficulty sleeping
in a bright room than in a dark room. She measured whether the
intensity of the light could predict the time it took a sample of 4
participants to fall asleep. The data for this hypothetical study
are listed in the following table.
Intensity
of
Light (in watts)
Time It
Took to
Sleep (in minutes)
X
Y
5
13
10
20
20
32
40
37
Compute an analysis of regression for...
A psychologist noted that people have more difficulty sleeping in a bright room than in a...
A psychologist noted that people have more difficulty sleeping
in a bright room than in a dark room. She measured whether the
intensity of the light could predict the time it took a sample of 4
participants to fall asleep. The data for this hypothetical study
are listed in the following table.
Intensity
of
Light (in watts)
Time It
Took to
Sleep (in minutes)
X
Y
5
8
10
16
20
27
40
34
Compute an analysis of regression for...
A psychologist noted that people have more difficulty sleeping in a bright room than in a...
A psychologist noted that people have more difficulty sleeping
in a bright room than in a dark room. She measured whether the
intensity of the light could predict the time it took a sample of 4
participants to fall asleep. The data for this hypothetical study
are listed in the following table.
Intensity
of
Light (in watts)
Time It
Took to
Sleep (in minutes)
X
Y
5
12
10
21
20
33
40
36
Compute an analysis of regression for...
A psychologist noted that people have more difficulty sleeping in a bright room than in a...
A psychologist noted that people have more difficulty sleeping
in a bright room than in a dark room. She measured whether the
intensity of the light could predict the time it took a sample of 4
participants to fall asleep. The data for this hypothetical study
are listed in the following table.
Intensity
of
Light (in watts)
Time It
Took to
Sleep (in minutes)
X
Y
5
11
10
20
20
31
40
37
Compute an analysis of regression for...
A psychologist noted that people have more difficulty sleeping in a bright room than in a...
A psychologist noted that people have more difficulty sleeping
in a bright room than in a dark room. She measured whether the
intensity of the light could predict the time it took a sample of 4
participants to fall asleep. The data for this hypothetical study
are listed in the following table.
Intensity
of
Light (in watts)
Time It
Took to
Sleep (in minutes)
X
Y
5
9
10
17
20
29
40
36
Compute an analysis of regression for...
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rate, a number of studies have examined the relationship between
birth weight and mother's age. One such study is described in the
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more likely to deliver low-birth-weight babies than are adult
females. Because low-birth-weight babies have a higher mortality
rate, a number of studies have examined the relationship between
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