Question: Shown in the left column are the top 10 companies receiving the largest dollar volume of contract awards from the U.S. Department of Defense in

Shown in the left column are the top 10 companies receiving the largest dollar volume of contract awards from the U.S. Department of Defense in 2012 according to Barr Group Aerospace. Use this population data to compute a mean and a standard deviation for these top 10 companies.

Amount of Contracts

Company .......($ billions)

Lockheed Martin .......29.3

Boeing ...........27.8

Raytheon .........14.2

General Dynamics ......13.6

Northrop Grumman ..... 8.7

United Technologies ..... 7.9

L-3 Communications ..... 6.4

BAE Systems ........ 5.9

SAIC ........... 5.1

Huntington Ingalls Industries .... 4.0

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