Question

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 16
20 29
40 35


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.   

Math   Statistics-And-Probability   
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Answer #1

Based on given excel output

P-value = 0.06 which is larger than 0.05

So Reject null hypothesis

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