In the article “X-Ray Computed Tomography and Nondestructive Evaluation of Clogging in Porous Concrete Field Samples” (J. of Materials in Civil Engr., 2012: 1103–1109), investigators determined the clogging percentage in porous concrete samples cored from parking lots. Porosity profiles using computed tomography scanned images were used in this study. The following represent the average porosity (%) using a gravimetric method for nine concrete cores: 8.1020.5026.5419.68 14.87 14.36 9.19 23.5522.27Calculate and interpret the values of the sample mean and sample standard deviation for this data.

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Answered: The following represent the average…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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In the article “X-Ray Computed Tomography and Nondestructive Evaluation of Clogging in Porous Concrete Field Samples” (J. of Materials in Civil Engr., 2012: 1103–1109), investigators determined the clogging percentage in porous concrete samples cored from parking lots. Porosity profiles using computed tomography scanned images were used in this study. The following represent the average porosity (%) using a gravimetric method for nine concrete cores:

8.10

20.50

26.54

19.68

14.87

14.36

9.19

23.55

22.27

Calculate and interpret the values of the sample mean and sample standard deviation for this data.

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