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Andru [333]
3 years ago
9

What is the slope,m? A. 4/3 B. 3/4 C. - 4/3 D. - 3/4

Mathematics
2 answers:
wel3 years ago
8 0
Your answer is D.-3/4
Tasya [4]3 years ago
7 0

Answer:

B.3/4

Step-by-step explanation:

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2 years ago
The National Center for Educational Statistics surveyed 5400 college graduates about the lengths of time required to earn their
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Answer:

The 90% confidence interval for the mean time required by all college graduates is between 5.36 years and 5.44 years.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*\frac{1.9}{\sqrt{4500}} = 0.04

The lower end of the interval is the sample mean subtracted by M. So it is 5.4 - 0.04 = 5.36 years.

The upper end of the interval is the sample mean added to M. So it is 5.4 + 0.04 = 5.44 years.

The 90% confidence interval for the mean time required by all college graduates is between 5.36 years and 5.44 years.

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3 years ago
What is the area of the rhombus
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Step-by-step explanation:

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Step-by-step explanation:


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