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Liula [17]
3 years ago
8

4-30. Micron Technology has sales offices located in four

Mathematics
1 answer:
ivanzaharov [21]3 years ago
6 0

Answer:

An invoice was paid an average of 20 days after it was received.

Mean =

Standard deviation =

Now we are supposed to find what percent of the invoices were paid within 15 days of receipt i.e.P(x<15)

Formula :

At x = 15

Substitute the values

Refer the z table for p value

So, p value = 0.1587

So, 15.87% of the invoices were paid within 15 days of receipt

Step-by-step explanation:

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