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3 years ago

V=1/2pir^2hsolve for h

Mathematics

1 answer:

TiliK225 [7]3 years ago

4 0

Times 2 both sides
2V=pir^2h
divide both sides by pir^2
$\frac{2V}{pir^2}=h$

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3 years ago

A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were c

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Answer:

a) The test statistic is $z = -2.51$

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Step-by-step explanation:

Question a:

Ha: pB < pNY

This means that the alternate hypothesis is rewritten as:

$H_a: p_{B} - p_{NY} < 0$

While the null hypothesis is:

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Standard error = 0.1

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The pvalue is the probability of finding a proportion less than -0.251, that is, a difference of at least 0.251, which is the pvalue of Z = -2.51.

Looking at the z-table, Z = -2.51 has a pvalue of 0.0060

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3 years ago