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2 years ago

7

Can coach Matt make eight teams using all the fifth and sixth graders choose the statement that explains why or why not ( you mi

ght have to zoom in to see the picture)

1 answer:

Nana76 [90]2 years ago

6 0

Answer: No. 8 is a factor of 16, but not a factor of 36.

Step-by-step explanation:

i-Ready

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Step-by-step explanation:

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3 years ago

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antoniya [11.8K]

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3 years ago

A quarterback in the National Football League throws 54 touchdown passes in 18 games. What is the average number of touchdown pa

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4 years ago

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Ksenya-84 [330]

Answer:

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3 years ago

The ages of registered voters in Smith County are normally distributed with a population standard deviation of 3 years and an un

eimsori [14]

Answer:

The margin of of error for a 95% confidence interval for the population mean is of 1.39 years.

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:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

The margin of error is:

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

Population standard deviation of 3 years

This means that $\sigma = 3$

Sample of 18 voters

This means that $n = 18$

Margin of error:

$M = z\frac{\sigma}{\sqrt{n}}$

$M = 1.96\frac{3}{\sqrt{18}}$

$M = 1.39$

The margin of of error for a 95% confidence interval for the population mean is of 1.39 years.

3 0

3 years ago