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butalik [34]
3 years ago
15

Solve the equations by modeling Draw the steps using circles for the variables and squares for the numbers

Mathematics
1 answer:
KiRa [710]3 years ago
8 0

Answer:

A and D

hope this helps :)

Step-by-step explanation:

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A random sample of 84 students at a university showed an average age of 22 years and a sample standard deviation of 3 years. Fin
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Answer:

The margin of error for the 94% confidence interval is 0.6154.

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population mean is:

CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}

The margin of error of this interval is:

MOE=z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}

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Compute the margin of error for the 94% confidence interval as follows:

MOE=z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}

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