2 years ago

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Mathematics

1 answer:

Hunter-Best [27]2 years ago

8 0

Answer:

lollolol

Step-by-step explanation:

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Step-by-step explanation:

-From the given information, $\hat p=0.65$ .

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$CI=\hat p\pm z \sqrt{\frac{\hat p(1-\hat p)}{n}}\\\\\\=0.65\pm 1.96\times \sqrt{\frac{0.65\times 0.35}{12000}}\\\\\\=0.65\pm 0.0085\\\\\\=[0.6415,0.6585]$

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