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Ksivusya [100]
3 years ago
10

In a shipment of onions, 12% are damaged. 1,144 onions are undamaged.

Mathematics
1 answer:
katovenus [111]3 years ago
5 0
Since 12% of them are damaged, that means the percentage of them that aren't 88%. 
The easiest way to do it is to divide 88 from 1,144, written as 1,144<span>÷88.
That's 13. So, then you would multiply 13 by 100. To get the total amount of onions. That'd be 1,300.</span>
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The probability that the sample mean would be at least $39000 is of 0.8665 = 86.65%.

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For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

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This means that n = 125, s = \frac{7320}{\sqrt{125}}

The probability that the sample mean would be at least $39000 is about?

This is 1 subtracted by the pvalue of Z when X = 39000. So

Z = \frac{X - \mu}{\sigma}

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Z = \frac{X - \mu}{s}

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