3 years ago

Using trigonometry. Tan, cos, sin etc. idk how to do thisss help

Mathematics

1 answer:

const2013 [10]3 years ago

7 0

Check the picture below

make sure your calculator is in Degree mode, if you need "x" in degrees

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The transformation is 0.5

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3 years ago

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Andreyy89

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A random sample of 600 voters in a particular city found 102 voters who voted yes on proposition 200. find a 95% confidence inte

nexus9112 [7]

N = 600, the sample size

Because 102 voters said 'Yes' to the proposition, the sample proportion is
$\hat{p} = \frac{102}{600} =0.17 \\
1 - \hat{p} = 1-0.17 = 0.83$

The standard error is
$SE_{p} = \sqrt{ \frac{\hat{p}(1-\hat{p})}{n} } = \sqrt{ \frac{(0.17)(0.83)}{600} } = 0.0153$

The confidence interval is
$\hat{p} \pm z^{*} SE_{p}$

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3 years ago

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