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10. Chemical analysis of Zn in two different fields indicated the following results: Field A: 4 samples were analysed with average concentration 112.3 mg/kg. (standard dev 4.5) Field B: 5 samples were analysed with average concentration 89.5 mg/kg. (standard dev 3.7) E-table value at 95% confidence level and 7 degrees of freedom is 1.88 Which statement is correct? A. The difference between experimental results is not significant (t-value = 8.3) B. The difference between experimental results is not significant (t-value = 5.5) C. The difference between experimental results is significant (t-value = 8.3) D. The difference between experimental results is significant (1-yaiue =55) %3D

10. Chemical analysis of Zn in two different fields indicated the following results: Field A: 4 samples were analysed with average concentration 112.3 mg/kg. (standard dev 4.5) Field B: 5 samples were analysed with average concentration 89.5 mg/kg. (standard dev 3.7) E-table value at 95% confidence level and 7 degrees of freedom is 1.88 Which statement is correct? A. The difference between experimental results is not significant (t-value = 8.3) B. The difference between experimental results is not significant (t-value = 5.5) C. The difference between experimental results is significant (t-value = 8.3) D. The difference between experimental results is significant (1-yaiue =55) %3D

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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10. Chemical analysis of Zn in two different fields indicated the following results: Field A: 4 samples were analysed with average concentration 112.3 mg/kg. (standard devi. 4.5) Field B: 5 samples were analysed with average concentration 89.5 mg/kg. (standard devi 3.7) t-table value at 95% confidence level and 7 degrees of freedom is 1.88 Which statement is correct? A. The difference between experimental results is not significant (t-value = 8.3) B. The difference between experimental results is not significant (t-value = 5.5) C. The difference between experimental results is significant (t-value = 8.3) D. The difference between experimental results is significant (t-value = 5.5) %3D %3D
Transcribed Image Text:10. Chemical analysis of Zn in two different fields indicated the following results: Field A: 4 samples were analysed with average concentration 112.3 mg/kg. (standard devi. 4.5) Field B: 5 samples were analysed with average concentration 89.5 mg/kg. (standard devi 3.7) t-table value at 95% confidence level and 7 degrees of freedom is 1.88 Which statement is correct? A. The difference between experimental results is not significant (t-value = 8.3) B. The difference between experimental results is not significant (t-value = 5.5) C. The difference between experimental results is significant (t-value = 8.3) D. The difference between experimental results is significant (t-value = 5.5) %3D %3D
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