2 years ago

If the dimensions of an equilateral triangle are trebled, how is the area affected?

Mathematics

1 answer:

Daniel [21]2 years ago

5 0

Dimension of an equilateral

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The confidence interval is 6.6<μ<6.8.

Step-by-step explanation:

We have:

Number of observations = 601

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The limits of the confidence interval can be calculated as

$X \pm z*\frac{\sigma}{\sqrt{n}}\\\\LL=X-z*\frac{\sigma}{\sqrt{n}}=6.7-1.96*\frac{1.5}{\sqrt{601} } =6.7-0.1199=6.6\\\\UL=X+z*\frac{\sigma}{\sqrt{n}}=6.7+1.96*\frac{1.5}{\sqrt{601} } =6.7+0.1199=6.8$

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