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 this hypothetical study. (Round your answers to two decimal places.)

Source of Variation	SS	df	MS	F_obt
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.

Expert Solution

orchestra answered 2 years ago

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 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 10 10 18 20 32 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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A psychologist noted that people have more difficulty sleeping in a bright room than in a...

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