The compressive strength of concrete should be 7000 psi. a. What is the required average compressive strength if the sta

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answerhappygod
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The compressive strength of concrete should be 7000 psi. a. What is the required average compressive strength if the sta

Post by answerhappygod »

The compressive strength of concrete should be 7000
psi.
a. What is the required average compressive strength if the
standard deviation from 15 tests is 300 psi.
b. What is the required average compressive strength if the
standard deviation from 50 tests is 800 psi?
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