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amm1812
3 years ago
15

Multiply and write the solution in scientific notation: 3.2 x 10^2 x 10^5

Mathematics
1 answer:
vlabodo [156]3 years ago
5 0

Answer:

3.2×10²×10⁵=32000000

And the scientific notation is 3.2000000x10⁷

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Answer:

A)n= 703.96

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Step by step Explanation:

Given that you want to be 99% confident that the sample percentage is within 3.1 percentage points of the true population percentage.

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A)Nothing is known therefore,

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For 90% confidence, z = 1.645

n = (zα/₂)²(p)(1-p)/M²

n= 1.645²× 0.5 × 0.5/0.031²

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Therefore, 703.96randomly selected air passengers must be​ surveyed to be 99%

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n= 602.308

Hence, 602.308 randomly selected air passengers must be​ surveyed to be 90% confident that the sample percentage is within 3.1 percentage points of the true population percentage.

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3 years ago
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