Health Insurance: Administrative Cost The following data are based on in- formation from Domestic Affairs. Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. 3 7 15 35 75 y 40 35 30 25 18 (a) Make a scatter diagram and draw the line you think best fits the data. (b) Would you say the correlation is low, moderate, or strong? positive or negative? (c) Use a calculator to verify that Ex = 135, Ex² = 7133, Ey = 148, Ey² = 4674, and Exy = 3040. Compute r. As x increases from 3 to 75, does the value of r imply that y should tend to increase or decrease? Explain.

Health Insurance: Administrative Cost The following data are based on in- formation from Domestic Affairs. Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. 3 7 15 35 75 y 40 35 30 25 18 (a) Make a scatter diagram and draw the line you think best fits the data. (b) Would you say the correlation is low, moderate, or strong? positive or negative? (c) Use a calculator to verify that Ex = 135, Ex² = 7133, Ey = 148, Ey² = 4674, and Exy = 3040. Compute r. As x increases from 3 to 75, does the value of r imply that y should tend to increase or decrease? Explain.

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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