Physics, 13.12.2019 04:31, nett4386

Amixture of pulverized fuel ash and portland cement to be used for grouting should have a compressive strength of more than 1300 kn/m2. the mixture will not be used unless experimental evidence indicates conclusively that the strength specification has been met. suppose compressive strength for specimens of this mixture is normally distributed with s 5 60. let m denote the true average compressive strength

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Amixture of pulverized fuel ash and portland cement to be used for grouting should have a compressiv...