# Statistics unlocking the power of data lock 5 texas

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Statistics: Unlocking the Power of Data Lock 5 Texas GOP Platform A few days later, the Texas GOP 2012 Platform announced that it opposed early childhood education Causation or just association? Source: Strauss, V. “ Texas GOP rejects ‘critical thinking’ skills. Really .” , 7/9/12.
Statistics: Unlocking the Power of Data Lock 5 Data from Facebook and Bloomberg
Statistics: Unlocking the Power of Data Lock 5 Data from NASA and National Science Foundation
Statistics: Unlocking the Power of Data Lock 5 Data from US Social Security Administration and National Housing Finance Agency
Statistics: Unlocking the Power of Data Lock 5 Data from Rotten Tomatoes, Newspaper Association of America
Statistics: Unlocking the Power of Data Lock 5 Data from Google, Real Clear Politics
Statistics: Unlocking the Power of Data Lock 5 Data from NY Law Enforcement Agency
Statistics: Unlocking the Power of Data Lock 5 It’s a Common Mistake! “The invalid assumption that correlation implies cause is probably among the two or three most serious and common errors of human reasoning.” - Stephen Jay Gould
Statistics: Unlocking the Power of Data Lock 5
Statistics: Unlocking the Power of Data Lock 5 Randomization How can we make sure to avoid confounding variables? RANDOMLY assign values of the explanatory variable
Statistics: Unlocking the Power of Data Lock 5 Randomized Experiment In a randomized experiment the explanatory variable for each unit is determined randomly, before the response variable is measured
Statistics: Unlocking the Power of Data Lock 5 Randomized Experiment The different levels of the explanatory variable are known as treatments Randomly divide the units into groups, and randomly assign a different treatment to each group If the treatments are randomly assigned, the treatment groups should all look similar
Statistics: Unlocking the Power of Data Lock 5 Randomized Experiments Because the explanatory variable is randomly assigned, it is not associated with any other variables. Confounding variables are eliminated!!! Explanatory Variable Response Variable Confounding Variable RANDOMIZED EXPERIMENT
Statistics: Unlocking the Power of Data Lock 5 Exercise and the Brain A study found that elderly people who walked at least a mile a day had significantly higher brain volume (gray matter related to reasoning) and significantly lower rates of Alzheimer’s and dementia compared to those who walked less The article states: “Walking about a mile a day can increase the