# Statistics And Plotting In R

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## Statistics And Plotting In R

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Use regression analysis to examine the effect of Foreign Born Percent on Difference in Interest in Trump relative to Clinton Google searches. 1. Generate a new variable for Foreign Born Percent. What is the correlation between Foreign Born Percent and Difference in Interest in Trump relative to Clinton (hint: try to cor() function)? 2. Create a linear regression model that uses Foreign Born Percent to explain Difference in Interest in Trump Relative to Clinton. Make a scatter plot of Foreign Born Percent (x) on Difference in Interest in Trump Relative to Clinton (y) with proper axes labels, and add the regression line to your plot. Paste the plot below. 3. Look at the summary statistics for your regression model. Interpret the intercept, coefficient estimate, and R-squared below. 4. Construct a 95% confidence interval, and interpret what it means below. 5. Lets now say we want to control for previous partisanship at the state level, and we decide to use Vote for Romney in 2010. Create a linear regression model that now includes this variable. Look at the summary statistics of your new regression model, and interpret the intercept, coefficient estimate, and R-squared below. 6. Construct a 95% confidence interval, and interpret what it means below.

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state abbrev trump clinton vote_romney foreign_pop total_pop Alabama AL 59 39 1 162539 4822023 Alaska AK 67 40 1 50530 731449 Arizona AZ 72 41 1 888922 6553255 Arkansas AR 60 44 1 127445 2949131 California CA 78 43 0 10289184 38041430 Colorado CO 75 43 0 511265 5187582 Connecticut CT 89 60 0 486104 3590347 Delaware DE 75 45 0 79814 917092 Florida FL 80 45 0 3762732 19317568 Georgia GA 62 38 1 941443 9919945 Hawaii HI 62 34 0 248554 1392313 Idaho ID 62 37 1 93629 1595728 Illinois IL 79 48 0 1782644 12875255 Indiana IN 67 44 1 302512 6537334 Iowa IA 68 58 0 131297 3074186 Kansas KS 56 36 1 188240 2885905 Kentucky KY 66 41 1 133744 4380415 Louisiana LA 55 36 1 164396 4601893 Maine ME 84 50 0 44307 1329192 Maryland MD 81 51 0 829935 5884563 Massachusetts MA 90 55 0 1002206 6646144 Michigan MI 73 51 0 600745 9883360 Minnesota MN 76 46 0 403286 5379139 Mississippi MS 51 56 1 55989 2984926 Missouri MO 67 46 1 226334 6021988 Montana MT 72 44 1 17860 1005141 Nebraska NE 64 41 1 122390 1855525 Nevada NV 70 38 0 525105 2758931 New Hampshire NH 87 53 0 73109 1320718 New Jersey NJ 91 55 0 1875742 8864590 New Mexico NM 67 38 0 194388 2085538 New York NY 92 55 0 4446908 19570261 North Carolina NC 70 48 1 753538 9752073 North Dakota ND 63 40 1 19580 699628 Ohio OH 73 50 0 437697 11544225 Oklahoma OK 62 45 1 212158 3814820 Oregon OR 77 43 0 369759 3899353 Pennsylvania PA 86 51 0 766128 12763536 Rhode Island RI 82 48 0 142232 1050292 South Carolina SC 60 41 1 221335 4723723 South Dakota SD 57 36 1 22251 833354 Tennessee TN 62 46 1 282541 6456243 Texas TX 60 36 1 4225254 26059203 Utah UT 59 41 1 236249 2855287 Vermont VT 87 51 0 26269 626011 Virginia VA 80 47 0 948152 8185867 Washington WA 83 46 0 911517 6897012 West Virginia WV 65 39 1 25607 1855413 Wisconsin WI 70 42 0 265775 5726398 Wyoming WY 60 38 1 18403 576412

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