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Citrus2011 [14]
3 years ago
6

As the value of Roman decreased, people began to barter (trade) goods again.

Social Studies
1 answer:
kumpel [21]3 years ago
6 0

Answer:

True

Explanation:

I dont't know if this is a question but it is true.

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A survey asked 26 adults how many years of education they had. The sample mean was 13.03 with a standard deviation of 3.22. It i
yulyashka [42]

Answer: (11.95, 14.11)

Explanation:

Let x be a random variable that represent the number of years of education.

Given: Sample size : n= 26

Sample mean : \overline{x}=13.03

Sample standard deviation : s = 3.22

Significance level : \alpha=100\%-90\%=10\%=0.1

Degree of freedom: df = n-1 = 25

Critical t-value for \alpha=0.1 and df = 25 will be

t_{\alpha/2, df}=t_{0.05,25}=1.7081

90% confidence interval for mean:

\overline{x}\pm t_{\alpha/2,df}\dfrac{s}{\sqrt{n}}\\\\=13.03\pm (1.7081)\dfrac{3.22}{\sqrt{26}}\\\\=13.03\pm  (1.7081)\dfrac{3.22}{5.09902}\\\\=13.03\pm 1.08\\\\=(13.03-1.08,\ 13.03+1.08)\\\\ =(11.95,\ 14.11)

A 90% confidence interval for the mean number of years of education = (11.95, 14.11)

5 0
3 years ago
Name the dynasty rural over China​
sdas [7]

Answer:

  1. the qin dynasty ,
  2. the xin dynasty
  3. the yuan dynasty
  4. the sui dynasty

3 0
3 years ago
In the context of expectancy theory, the belief that performing a given action is associated with a particular outcome is called
allsm [11]

Answer:

Instrumentality

Explanation:

In expectancy theory, instrumentality refers to the expectation that a person has which make them believe that they will receive appropriate reward after fulfilling a certain task.

Examples of instrumentality:

- Workers who are expected to receive salary after working for a company.

- A child who is expecting a candy as a reward for doing his homework

4 0
3 years ago
Giraldo is unhappy at work. One explanation that is consistent with psychoanalytic theories of personality is that Giraldo feels
miskamm [114]

The correct answer is "Giraldo feels he cannot really be himself at work, and this lack of self-actualization causes his unhappiness."

Giraldo is unhappy at work. One explanation that is consistent with psychoanalytic theories of personality is that Giraldo feels he cannot really be himself at work, and this lack of self-actualization causes his unhappiness.

Sigmund Freud developed an important psychoanalytic theory of personality that says that humans have conflicts due to the constant interaction of three factors he identified that happen inside the human brain. One he called the ego, the superego, and the id. In this case, Giraldo finds no satisfaction at the workplace because in his mind he thinks he cannot express how he truly is and be himself. This limits his experience and satisfaction in the office.

4 0
3 years ago
Which two of these regions did the Persian Empire conquer?
12345 [234]

Answer:

Egypt

Explanation:

At its height, it encompassed the areas of modern-day Iran, Egypt, Turkey, and parts of Afghanistan and Pakistan. The Persian Empire emerged under the leadership of Cyrus II, who conquered the neighboring Median Empire ruled by his grandfather. From then on Cyrus was called the “shah,” or king, of Persia.

3 0
3 years ago
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