Canada has 10 provinces and 3 territories for a total of 13 administrative regions. A researcher...
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Canada has 10 provinces and 3 territories for a total of 13 administrative regions. A researcher is studying the growth patterns and health of a particular animal species. He wants to include in his regression information about which administrative region each animal observed is from. (a) The researcher is contemplating using a "region" variable and assigning 12 of the regions a number, 1 through 12, leaving one region out to be the base case. Given concerns of perfect multicollinearity, will this approach work? (b) A friend of the researcher suggests creating 12 separate dummy variables, one for each region except one, and coding the variables with a 1 if the animal being observed is from that region, otherwise coding as a zero. Given concerns of perfect multicollinearity, will this approach work? How should the coefficient be interpreted? Canada has 10 provinces and 3 territories for a total of 13 administrative regions. A researcher is studying the growth patterns and health of a particular animal species. He wants to include in his regression information about which administrative region each animal observed is from. (a) The researcher is contemplating using a "region" variable and assigning 12 of the regions a number, 1 through 12, leaving one region out to be the base case. Given concerns of perfect multicollinearity, will this approach work? (b) A friend of the researcher suggests creating 12 separate dummy variables, one for each region except one, and coding the variables with a 1 if the animal being observed is from that region, otherwise coding as a zero. Given concerns of perfect multicollinearity, will this approach work? How should the coefficient be interpreted?
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a Using a region variable and assigning numerical values 1 through 12 to the 12 regions while leavin... View the full answer
Related Book For
The Essentials Of Statistics A Tool For Social Research
ISBN: 9781111829568
3rd Edition
Authors: Joseph F. Healey
Posted Date:
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