Public profile for bartonpoulson
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Toothless Residents in US by State
Adults aged 65+ who have had all their natural teeth extracted. NOTE: Data for Hawaii is not available.
SOURCE: Centers for Disease Control and Prevention (CDC). Behavioral Risk Factor Surveillance System Survey Data. Atlanta, Georgia: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, 2004.
Retrieved from StateMaster.com: Health Statistics > Oral health > Loss of natural teeth (most recent) by state.  bartonpoulson  Mar 10, 2011  1KB  533 
Average Years of Schooling for Adults by Country
Average years of schooling for adults for 100 countries from NationMaster.com  bartonpoulson  Jan 20, 2011  2KB  1501 
Birth Rate per 1000 by State  bartonpoulson  Jan 13, 2011  1KB  166 
Indy 500 and Brickyard 400 Winner Speeds by Year
How fast are NASCAR Stock Cars compared to openwheel Indy Cars? This dataset contains the winnerâ€™s average speed for Indianapolis Motor Speedway for the Indy 500 (for Indy Cars) and the Brickyard 400 (for NASCAR) since the latter started in 1994.  bartonpoulson  Apr 16, 2010  366B  347 
Seating Choice versus GPA (For 3 rows, with Text and Indicator Columns)
This dataset contains hypothetical (I believe) data on GPA for students who sit in the front, middle, and back rows of a classroom, as well as a hypothetical gender variable. The data are shown using both text variables (e.g., "front" and "middle") and 0/1 indicator variables for the row and gender variables. This dataset is useful for demonstrating the different ways that StatCrunch can compare means based on two factors: (a) the text factor columns can be used in a twoway ANOVA; and (b) the 0/1 indicator columns can be used in multiple regression. (Because of StatCrunch's current limitation on equal cells, the 0/1 variables only use the first and middle rows.) Both procedures gives the same pvalue and same conclusion (as long as the interaction term is centered), thus highlighting the similarity of statistical procedures and StatCrunch's flexibility.  bartonpoulson  Apr 7, 2010  1KB  5626 
Seating Choice versus GPA (Stacked & Split Columns for Front & Back Rows)
This dataset contains hypothetical (I believe) data on GPA for students who sit in the front and back row of a classroom. The data are shown in several ways: (a) two separate columns (one for the front row GPA and another or the back row GPA); (b) stacked with one column to indicate front or back row and another column with the GPAs; and (c) the row column repeated as a 0/1 indicator variable.
This dataset is useful for comparing the different ways that StatCrunch can compare the means of two groups: (a) The two columns of scores (front and back) can be used in the 2sample ttest or a oneway ANOVA; (b) the stacked text column (front/back) with a separate column for GPA can also be used for oneway ANOVA; and (c) the 0/1 indicator column and stacked GPAs can be used with correlation and regression. Every procedure gives the same pvalue and same conclusion, thus highlighting the similarity of statistical procedures and StatCrunch's flexibility.  bartonpoulson  Apr 7, 2010  465B  2699 
Home Runs and Strike Outs for 2004 Boston Red Sox by Handedness
These data show home runs and strike outs for the 12 players from the Boston Red Sox who had more than 200 atbats in the 2004 season (the first year they won the World Series after the 86year Curse of the Bambino). It also shows whether the players bat lefthanded or as switch hitters, both of which are coded as 0/1 (No/Yes, respectively) indicator variables (also known as dummy variables), as well as a text L/R/LR variable. These data were used for a demonstration for bivariate and multiple regression.  bartonpoulson  Nov 3, 2009  375B  1335 
