1 year ago

Composite Figures

Mathematics

1 answer:

ahrayia [7]1 year ago

4 0

1,005.44

Pir^2h

3.142*8*8*5

1,005.44

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Suppose heights of seasonal pine saplings are normally distributed and have a known population standard deviation of 17 millimet

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$296.693\leq x\leq 319.307$

Step-by-step explanation:

The confidence interval for the population mean x can be calculated as:

$x'-z_{\alpha /2}\frac{s}{\sqrt{n} } \leq x\leq x'+z_{\alpha /2}\frac{s}{\sqrt{n} }$

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Finally, replacing the values of x' by 308, s by 17, n by 15 and $z_{\alpha /2}$ by 2.576, we get that the confidence interval is:

$308-2.576\frac{17}{\sqrt{15} } \leq x\leq 308+2.576\frac{17}{\sqrt{15} }\\308-11.307 \leq x\leq 308+11.307\\296.693\leq x\leq 319.307$

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3 years ago

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Step-by-step explanation:

5x(x−4)=0

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