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3 years ago

Who now ?............

Mathematics

1 answer:

Julli [10]3 years ago

4 0

Your answer is D.
Trust me, I know

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Express the confidence interval

marissa [1.9K]

Answer:

$\hat p = \frac{0.244+0.326}{2}=0.285$

$ME = \frac{0.326-0.244}{2}=0.041$

$0.285 \pm 0.041$

Step-by-step explanation:

For this case we have a confidence interval given as a percent:

$24.4\% \leq p \leq 32.6\%$

If we express this in terms of fraction we have this:

$0.244 \leq p \leq 0.326$

We know that the confidence interval for the true proportion is given by:

$\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}$

And thats equivalent to:

$\hat p \pm ME$

We can estimate the estimated proportion like this:

$\hat p = \frac{0.244+0.326}{2}=0.285$

And the margin of error can be estimaed using the fact that the confidence interval is symmetrical

$ME = \frac{0.326-0.244}{2}=0.041$

And then the confidence interval in the form desired is:

$0.285 \pm 0.041$

7 0

3 years ago

If one side of a square is 16 how long is the diagonal?

Snezhnost [94]

Answer:

d≈22.63

Step-by-step explanation:

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3 years ago

Solving literal equations <br> Solve equation for y <br> -x + 5y = 10

Bogdan [553]

Answer: y = 10 + x / 5

Step-by-step explanation:

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3 years ago

What is the inverse of y=16x^2+1

AysviL [449]

16x^2+1=y would be the inverse of y=16x^2+1

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QveST [7]

Answer:

30 cm^2

Step-by-step explanation:

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the rectangle is 6

36-6=30

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