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AleksandrR [38]

3 years ago

11

On a certain map, 2.5 inches represents 15 miles Bay City and green glitter 4 inches apart on the map what is the actual distanc

e between Bay City and Greenwood

1 answer:

Helga [31]3 years ago

5 0

The actual distance is 24 miles

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The school printer has purchased a new color printer that can produce 75 pages in 5 minutes. If the printer were to print only 1

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15 pages

Step-by-step explanation:

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3 years ago

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

Debora [2.8K]

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:

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

The critical value of <em>z</em> for 94% confidence level is, <em>z</em> = 1.88.

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

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

$=1.88\times\frac{3}{\sqrt{84}}\\\\=0.6154$

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

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