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Semenov [28]
2 years ago
5

3. What is the answer to the second example? -2+6 2x-6

Mathematics
1 answer:
kherson [118]2 years ago
6 0
8/12
ceasxfewddsxcfd
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A random sampling of a company's monthly operating expenses for n=36 months produced a sample mean of $5474 and a stan-dard devi
lilavasa [31]

Answer with explanation:

Mean of the sample(m) = $ 5474

Standard deviation of the sample (S)=764

Number of observation(n)=36

Z_{90 \text{Percent}}=Z_{0.09}=0.5359

z_{score}=\frac{\Bar x-\mu}{\frac{S}{\sqrt{n}}}\\\\0.5359=\frac{5474- \mu}{\frac{764}{\sqrt{36}}}\\\\0.5359=\frac{5474- \mu}{\frac{764}{6}}\\\\764 \times 0.5359=6 \times (5474- \mu)\\\\409.4276=32844-6 \mu\\\\6 \mu=32844 -409.4276\\\\ 6 \mu=32434.5724\\\\ \mu=\frac{32434.5724}{6}\\\\ \mu=5405.76

So, Mean Monthly Expenses of Population =$ 5405.76, which is 90% upper confidence bound for the company's mean monthly expenses.

4 0
3 years ago
5.
Ainat [17]

Answer:

a or c Im not sure

Step-by-step explanation:

I think b though

7 0
3 years ago
The figure below shows three small circles, each
jenyasd209 [6]
The answer is A (54pi square cm)
4 0
3 years ago
How do I find A’?<br><br><br><br> Let U={a,b,c,d,e,f,g} and A={a,b,e,f}
vesna_86 [32]

Let U={a,b,c,d,e,f,g,h}

A={a,c,d}

B={b,c,d}

C={b,e,f,g,h}

6 0
3 years ago
Marcia has 412 flower for centerpieces.She uses 8 flowers for each centerpiece.How many centerpieces can she make?
Mkey [24]

Answer:

412/8= 51 centerpieces

Step-by-step explanation:

3 0
3 years ago
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