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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Please answer the question in the photo. Thank you!

Transcribed Image Text:A campus researcher wanted to investigate the factors that affect visitor travel time in a complex,
multilevel building on campus. Specifically, he wanted to determine whether different building signs
(building maps versus wall signage) affect the total amount of time visitors require to reach their
destination and whether that time depends on whether the starting location is inside or outside
the building. Three subjects were assigned to each of the combinations of signs and starting
locations, and travel time in seconds from beginning to destination was recorded. Here is a partial
result of the analysis.
ANOVA
Source of Variation
Signs
Starting Location
Interaction
Within
Total
SS
14008.33
12288
48
35305.33
61649.67
The within (error) degrees of freedom is
af
_(final answer is a whole number, e.g. 20)
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