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24. The treatments and experimental units in the study are A. x-ray equipment, dogs B. x-ray equipment, difference in recorded thorax thickness and respectively.

24. The treatments and experimental units in the study are A. x-ray equipment, dogs B. x-ray equipment, difference in recorded thorax thickness and respectively.

MATLAB: An Introduction with Applications
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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24. The treatments and experimental units in the study are A. x-ray equipment, dogs B. x-ray equipment, difference in recorded thorax thickness C. dogs, x-ray equipment D. difference in recorded thorax thickness, x-ray equipment and respectively.
Transcribed Image Text:24. The treatments and experimental units in the study are A. x-ray equipment, dogs B. x-ray equipment, difference in recorded thorax thickness C. dogs, x-ray equipment D. difference in recorded thorax thickness, x-ray equipment and respectively.
For Numbers 24 to 26: Three veterinary x-ray equipment (A, B, and C) are being tested for efficiency in accurately measuring thorax thickness (in cm) of dogs. Twelve dogs of the same breed and age were randomly assigned to each of the x-ray equipment (i.e., 4 dogs per equipment). The difference in the recorded value of the machine from the reading of a standard and commercially available x- ray equipment was recorded. R-outputs are provided below: equipment: A data: diff_reading W = 0.91474 p-value = 0.5079 Wilk-Shapiro Test for Normality equipment: B data: diff reading W = 0.90886 p-value = 0.4764 equipment Residuals Bartlett test of homogeneity of variances data: diff_reading by equipment Bartlett's K-squared = 2.712, df 2, p-value Df Sum Sq 2 0.5887 9 0.6588 Signif. codes: equipment: C data: diff_reading W = 0.95239 p-value = 0.7311 = Analysis of Variance Mean Sq F value Pr (>F) 0.2944 4.021 0.0565. 0.0732 1***1 0 0.2577 *' 0.001 '**' 0.01 *** 0.05 '.' 0.1 W 1
Transcribed Image Text:For Numbers 24 to 26: Three veterinary x-ray equipment (A, B, and C) are being tested for efficiency in accurately measuring thorax thickness (in cm) of dogs. Twelve dogs of the same breed and age were randomly assigned to each of the x-ray equipment (i.e., 4 dogs per equipment). The difference in the recorded value of the machine from the reading of a standard and commercially available x- ray equipment was recorded. R-outputs are provided below: equipment: A data: diff_reading W = 0.91474 p-value = 0.5079 Wilk-Shapiro Test for Normality equipment: B data: diff reading W = 0.90886 p-value = 0.4764 equipment Residuals Bartlett test of homogeneity of variances data: diff_reading by equipment Bartlett's K-squared = 2.712, df 2, p-value Df Sum Sq 2 0.5887 9 0.6588 Signif. codes: equipment: C data: diff_reading W = 0.95239 p-value = 0.7311 = Analysis of Variance Mean Sq F value Pr (>F) 0.2944 4.021 0.0565. 0.0732 1***1 0 0.2577 *' 0.001 '**' 0.01 *** 0.05 '.' 0.1 W 1
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