Answered: The Construction Labor Research Council…

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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Question

The Construction Labor Research Council lists a number of construction labour jobs that seem to pay approximately the same wages per hour. Some of these are bricklaying, iron working, and crane operation. Suppose a labour analyst takes a random sample of workers from each of these types of construction jobs and from across the country and asks what their hourly wages are. If this survey yields the following data, is there a significant difference in mean hourly wages for these three jobs? If there is a significant difference, use the Tukey-Kramer procedure to determine which pairs, if any, are also significantly different. Let α = 0.05.

Job Type

Bricklaying

Iron Working

Crane Operation

$19.25	$26.45	$16.20
17.80	21.10	23.30
20.50	16.40	22.90
24.33	22.86	19.50
21.81	27.55	29.00
22.29	18.50	22.95
21.20		25.52
		21.20

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