W2Example

# W2Example - clear all; close all; %cfw_ Example: -The data...

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clear all; close all; %{ Example: --------- The data shown in the Table below displays, in millions of dollars, the Sales, Profits, and Assets of some well-known companies: ========================================== Company Sales Profits Assets ========================================== GeneralMotors 126974 4224 173297 Ford 96933 3835 160893 Exxon 86656 3510 83219 IBM 63438 3758 77734 GeneralElectric 55264 3939 128344 Mobil 50976 1809 39080 PhilipMoris 39069 2946 38528 Crystler 36156 359 51038 DuPont 35209 2480 34715 Texaco 32416 2413 25636 ========================================== a) Calculate the sample means of Sales, Profits, and Assets. b) Calculate the sample standard deviations of Sales, Profits, and Assets. c) Plot the histograms of Sales, Profits, and Assets, separately. Comment on these plots. d) Plot the scatter plot of Profits vs. Assets, and determine whether the relationship is linear or nonlinear. From this scatter plot, it is apparent that there is an outlier. To which company

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## This note was uploaded on 09/07/2011 for the course INSE 6210 taught by Professor Benhamza during the Fall '10 term at Concordia Canada.

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W2Example - clear all; close all; %cfw_ Example: -The data...

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