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In-s [12.5K]
3 years ago
15

A negative number divided by a positive number will yield anumber.​

Mathematics
1 answer:
forsale [732]3 years ago
5 0

Answer: negative Number

Step-by-step explanation:

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A civil engineer is analyzing the compressive strength of concrete. Compressive strength is normally distributed with σ = 31.62
AysviL [449]

Answer:

A sample size of at least 737 specimens is required.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.99}{2} = 0.005

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So:

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