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valkas [14]
3 years ago
5

t="\sqrt[3]{-8/27} = -2/3" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
sasho [114]3 years ago
5 0
The equation is true because both sides are identical.
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A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 1
Harman [31]

The probability that the mean clock life would differ from the population mean by greater than 12.5 years is 98.30%.

Given mean of 14 years, variance of 25 and sample size is 50.

We have to calculate the probability that the mean clock life would differ from the population mean by greater than 1.5 years.

μ=14,

σ=\sqrt{25}=5

n=50

s orσ =5/\sqrt{50}=0.7071.

This is 1 subtracted by the  p value of z when X=12.5.

So,

z=X-μ/σ

=12.5-14/0.7071

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Hence the probability that the mean clock life would differ from the population mean by greater than 1.5 years is 98.30%.

Learn more about probability at brainly.com/question/24756209

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There is a mistake in question and correct question is as under:

What is the probability that the mean clock life would differ from the population mean by greater than 12.5 years?

5 0
2 years ago
The difference in ages between a father and a son is 35. The sum is
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66

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Answer:

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Step-by-step explanation:

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14b=a then what is a
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