Question

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	19
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.    

Answer 1

Answer:

By using minitab, Path: Stat > Regression > Regression > Fit Regression Model

Here, P value 0.077 > 0.05

Hence, Accept the null hypothesis.