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Basic Statistics for Business and Economics | 7th Edition | ISBN: 9780077384470 | Authors: Douglas Lind; William Marchal; Samuel Wathen
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The Split-A-Rail Fence Company sells three types of fence

Chapter 3, Problem 55E

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QUESTION:

Problem 55E

The Split-A-Rail Fence Company sells three types of fence to homeowners in suburban Seattle, Washington. Grade A costs $5.00 per running foot to install, Grade B costs $6.50 per running foot, and Grade C, the premium quality, costs $8.00 per running foot. Yesterday, Split-A-Rail installed 270 feet of Grade A, 300 feet of Grade B, and 100 feet of Grade C. What was the mean cost per foot of fence installed?

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QUESTION:

Problem 55E

The Split-A-Rail Fence Company sells three types of fence to homeowners in suburban Seattle, Washington. Grade A costs $5.00 per running foot to install, Grade B costs $6.50 per running foot, and Grade C, the premium quality, costs $8.00 per running foot. Yesterday, Split-A-Rail installed 270 feet of Grade A, 300 feet of Grade B, and 100 feet of Grade C. What was the mean cost per foot of fence installed?

ANSWER:

Solution:

Step 1 of 2:

A company sells three types of fence to homeowners in suburban Seattle, Washington.

Let grade A costs $5.00 per running foot to install, B costs $6.50 per running foot, and Gradec costs $8.00.

split-A-Rail installed 270 feet of grade A, 300 feet of Grade B, and 100 feet of Grade C.

The claim is to find the mean cost per foot of fence installed.

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