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Tomtit [17]
3 years ago
10

Which of the following describes a developing nation? a. A command economy with a low Human Development Index b. A mixed economy

with a high Human Development Index c. A market economy with a high per capita income d. A market economy with trillion-dollar gross domestic product
SAT
1 answer:
steposvetlana [31]3 years ago
5 0
B- a mixed economy with a high human development index. This shows that the nation is developing when it comes to population
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Leni [432]

Using the z-distribution, it is found that the smallest sample size required to obtain the desired margin of error is of 4330.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

In this problem:

  • The estimate of the proportion is of \pi = 0.8.
  • The desired margin of error is of M = 0.01.
  • 90% confidence level, hence\alpha = 0.9, z is the value of Z that has a p-value of \frac{1+0.9}{2} = 0.95, so z = 1.645.

Then, we solve for n to find the minimum sample size.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.01 = 1.645\sqrt{\frac{0.8(0.2)}{n}}

0.01\sqrt{n} = 1.645\sqrt{0.8(0.2)}

\sqrt{n} = \frac{1.645\sqrt{0.8(0.2)}}{0.01}

(\sqrt{n})^2 = \left(\frac{1.645\sqrt{0.8(0.2)}}{0.01}\right)^2

n = 4329.6

Rounding up, the smallest sample size required to obtain the desired margin of error is of 4330.

To learn more about the z-distribution, you can take a look at brainly.com/question/12517818

7 0
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Ready mathematics practice and problem solving grade 8 answer key
andreyandreev [35.5K]

Answer:

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Which of the following is accurate concerning nonverbal communication.
Digiron [165]

The statement that is accurate regarding nonverbal communication is:<em> Touching the head of another person is regarded as offensive in some cultures.</em>

<h3>What is Nonverbal Communication?</h3>

Nonverbal Communication can be referred to as the mode of passing across messages to a receiver using mediums such as facial expressions, gestures, posture, body language, or eye contact.

Most cultures uses nonverbal communication, however, touching another person's head is considered offensive in some cultures.

Thus, the statement that is accurate regarding nonverbal communication is:<em> Touching the head of another person is regarded as </em><em>offensive </em><em>in some cultures.</em>

Learn more about nonverbal communication on:

brainly.com/question/5428379

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You are less likely to see a total solar eclipse than a total lunar eclipse because
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I think the answer is d. the moon's umbra only covers a small area on earths surface.

6 0
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under which governing system are the means of generating wealth owned by the government and not private individuals?
romanna [79]

Under socialism there is means of generating wealth owned by the government and not private individuals.

Given that in a government system there is means of generating wealth owned by the government and not private individuals.

We are required to tell the name of the government system in which there is means of generating wealth owned by the government and not private individuals.

The term or name of the government system is socialism.

Socialism is basically a left-wing to far-left economic philosophy and movement encompassing a range of economic systems characterized by the dominance of social ownership of the means of production as opposed to private ownership.

Learn more about socialism at brainly.com/question/14693002

#SPJ4

5 0
2 years ago
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