2 years ago

Simplify 7 sqare root 3 takeaway 2 sqare root 3 add sqaure root 3 takeaway 3 sqaure root 3

Mathematics

1 answer:

Paha777 [63]2 years ago

8 0

Answer:

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Step-by-step explanation:

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Ming works as a quality assurance analyst at a bottling factory. She wants to use a one-sample z interval to estimate what propo

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Sample size is $n=423$

Step-by-step explanation:

Given that,

Margin of error $=4$ %

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Suppose, sample proportion $=0.5$

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We know that,

Margin of error $=2^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }$

∴ $1.64\sqrt{\frac{0.5(0.5)}{n} } \leq 4\%$

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$\Rightarrow \frac{0.5}{\sqrt{n} } \leq \frac{0.04}{1.64}$

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squaring on both side,

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Step-by-step explanation:

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