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Answer these problems please! Solving for x!

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1 answer:

Tema [17]2 years ago

3 0

Answer:

4. x= 26 5. 7.333333 6. 16.4

Step-by-step explanation:

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Step-by-step explanation:

Data provided in the question:

$\bar{x}=\$\ 893$

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At $88 \%$ confidence level the $z$ is.

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$z_{\frac \alpha 2}=20.06=1.555$

$\text { Margin of error }=E=Z_{\frac \alpha 2} \times \frac{\sigma}{\sqrt{n}}$

$E=1.555 \times \frac{450}{\sqrt{102}}$

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