A psychologist noted that people have more difficulty sleeping in a bright room
ID: 3181208 • Letter: A
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 15 20 27 40 33 Compute an analysis of regression for this hypothetical study. (Round your answers to two decimal places.) Source of Variation SS df MS Fobt Regression 640.00 Incorrect: Your answer is incorrect. 1 Correct: Your answer is correct. 640.00 Incorrect: Your answer is incorrect. Residual (error) 78.75 Incorrect: Your answer is incorrect. 2 Correct: Your answer is correct. 39.38 Incorrect: Your answer is incorrect. Total 718.75 Incorrect: Your answer is incorrect. 3 Correct: Your answer is correct.
Explanation / Answer
from above data
Analysis of Variance Source DF SS MS F P regression 1 320.5565 320.5565217 16.2539683 5.6371E-02 Residual error 2 39.4435 19.7217 Total 3 360Related Questions
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