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Dmitrij [34]
3 years ago
6

The monthly earnings of computer systems analysts are normally distributed with a mean of $4,300. If only 1.07% of the systems a

nalysts have a monthly income of more than $6,140, what is the value of the standard deviation of the monthly earnings of the computer systems analysts?
Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
8 0

Answer:

800

Step-by-step explanation:

spin [16.1K]3 years ago
7 0

Answer:800

Step-by-step explanation:

Mean(\mu )=\$ 4300

and P(X>6140)=0.0107

P(X>x_0)=0.0107

P\left ( \frac{X-\mu }{\sigma}

P\left ( z

\frac{x-\mu }{\sigma}=InvNormal(0.9893)

Using Z table to get InvNormal(0.9893)=2.30

\frac{6140-4300}{\sigma}=2.30

\sigma =\frac{6140-4300}{2.30}=800

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