3 years ago

If something is scarce it is generally

Mathematics

1 answer:

dmitriy555 [2]3 years ago

6 0

Little of, not in plethora, small numbered

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original correct coordinates of D : (7, 3)

x is the horizontal axis.

y is the vertical axis.

Here Allie mistook the x and y axis completely oppositely.

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Given:
Sample proportion = 85% = 0.85.
Confidence level (CL) = 90%.
Confidence interval (CI) $\hat{p} \pm z^{*} \sqrt{ \frac{\hat{p}(1-\hat{p})}{n} } \\ where \\ n=sample\, size \\ z^{*}=1.645 \, at \, 90\% \, CL$

We want the confidence interval to be 5% or 0.05. Therefore
$0.85 - 1.645 \sqrt{ \frac{0.85(1-0.85)}{n} }=0.05 \\ 0.85 - \frac{0.5874}{ \sqrt{n} } =0.05 \\ \frac{0.5874}{ \sqrt{n} }=0.8 \\ \sqrt{n} = .7342 \\ n=0.54$

Because this number is less than 1, a default sample size of 30 (for the normal distribution) is recommended.

Answer: 30

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Answer:

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2. 118

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3. 739

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Step-by-step explanation:

Please brainliest!

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