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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 5 Days Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Urban population estimation using satellite images. Can the population of an urban area be estimated without taking a census? In Geographical Analysis (January 2007) geography professors at the University of Wisconsin–Milwaukee and Ohio State University demonstrated the use of satellite image maps for estimating urban population. A portion of Columbus, Ohio, was partitioned into n = 125 census block groups and satellite imagery was obtained. For each census block, the following variables were measured: population density (y), proportion of block with low-density residential areas (x1), and proportion of block with high-density residential areas (x2). A first-order model for y was fit to the data with the following results:
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(a) Give a practical interpretation of each β-estimate in the model.
(b) Give a practical interpretation of the coefficient of determination, R2
(c) State H0 and Ha for a test of overall model adequacy.
(d) Refer to part c. Compute the value of the test statistic.
(e) Refer to parts c and d. Make the appropriate conclusion at α = .01
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