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lys-0071 [83]
2 years ago
11

ALL THE WAYS THIS CAN BE NAMED DONT GUESS TY

Mathematics
1 answer:
Leviafan [203]2 years ago
6 0

Answer:

Step-by-step explanation:

∠A  - Angle can also be named by the vertex holding the angle.

∠TAR

∠RAT

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What is 321×23 <br><br> one more thing<br><br> what is 3,829÷1221
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Identify the property used in the following<br>a+b=b+a<br>(ab)c =a(bc)​
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Reading proficiency: An educator wants to construct a 99.5% confidence interval for the proportion of elementary school children
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Answer:

A sample size of 345 is needed so that the confidence interval will have a margin of error of 0.07

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

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The margin of error of the interval is given by:

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p = 0.69

99.5% confidence level

So \alpha = 0.005, z is the value of Z that has a pvalue of 1 - \frac{0.005}{2} = 0.9975, so Z = 2.81.

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This is n when M = 0.07. So

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(\sqrt{n})^{2} = (18.5658)^{2}

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A sample size of 345 is needed so that the confidence interval will have a margin of error of 0.07

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