Let x be per capita income in thousands of dollars. Let y be the number of medical doctors per 10,000 residents. Six small cities in Oregon gave the following information about x and y. 8.3 8.7 11.4 13.1 9.6 9.0 9.6 9.8 20.0 8.0 18.9 10.2 A USE SALT Complete parts (a) through (e), given Xx - 53.4, 2y - 83.2, E - 477.78, zy - 1254.98, Exy- 754.03, and r= 0.8482. (a) Draw a scatter diagram displaying the data. Graph Layers After you add an object to the graph you can use Graph Layers to view and edit its properties 12 10 WebAssign. Graching Tool (b) Verify the given sums Ex, Ey, Ex², Ey?, Exy, and the value of the sample correlation coefficient r. (Round your value for r to four decimal places.) Ex Ey = Exy= (c) Find x, and y. Then find the equation of the least-squares line ŷ - a + bx. (Round your answer to four decimal places.)

Let x be per capita income in thousands of dollars. Let y be the number of medical doctors per 10,000 residents. Six small cities in Oregon gave the following information about x and y. 8.3 8.7 11.4 13.1 9.6 9.0 9.6 9.8 20.0 8.0 18.9 10.2 A USE SALT Complete parts (a) through (e), given Xx - 53.4, 2y - 83.2, E - 477.78, zy - 1254.98, Exy- 754.03, and r= 0.8482. (a) Draw a scatter diagram displaying the data. Graph Layers After you add an object to the graph you can use Graph Layers to view and edit its properties 12 10 WebAssign. Graching Tool (b) Verify the given sums Ex, Ey, Ex², Ey?, Exy, and the value of the sample correlation coefficient r. (Round your value for r to four decimal places.) Ex Ey = Exy= (c) Find x, and y. Then find the equation of the least-squares line ŷ - a + bx. (Round your answer to four decimal places.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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