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(ii)Determine the mean strength of a concrete with a characteristic strength of 45 N/mm², assuming the standard deviation is 10 N/mm², and only 5% of the sample is allowed to be less than the characteristic strength.

(ii)Determine the mean strength of a concrete with a characteristic strength of 45 N/mm², assuming the standard deviation is 10 N/mm², and only 5% of the sample is allowed to be less than the characteristic strength.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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(ii) Determine the mean strength of a concrete with a characteristic strength of 45 N/mm², assuming the standard deviation is 10 N/mm², and only 5% of the sample is allowed to be less than the characteristic strength.
Transcribed Image Text:(ii) Determine the mean strength of a concrete with a characteristic strength of 45 N/mm², assuming the standard deviation is 10 N/mm², and only 5% of the sample is allowed to be less than the characteristic strength.
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