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motikmotik
3 years ago
12

One popular definition of economics is the study of

Social Studies
1 answer:
posledela3 years ago
5 0

The answer should be something like this:

how best to allocate scarce resources among competing uses.

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Which of the following best exemplifies prosocial behavior?
erma4kov [3.2K]
D) Tyler visits his aunt once a week to bring her groceries.
I hope this helps
8 0
3 years ago
How do people running the government get the right to govern?
Natalija [7]

They are voted on by the people.

3 0
3 years ago
In 1988 a research study was conducted on twins reared apart and twins reared together, resulting in the support of
FromTheMoon [43]

Answer:

Its B. The Minnesota Twin Study

Explanation:

Edge 2020 :)

8 0
3 years ago
Read 2 more answers
Most US adults have social ties with a large number of people, including friends, family, co-workers, and other acquaintances. I
Serga [27]

Hello. This question is incomplete. The full question is:

Most US adults have social ties with a large number of people, including friends, family, co-workers, and other acquaintances. It is nearly impossible for most people to reliably list all the people they know, but using a mathematical model, social analysts estimate that, on average, a US adult has social ties with 634 people.1 A survey of 1700 randomly selected US adults who are cell phone users finds that the average number of social ties for the cell phone users in the sample was 664 with a standard deviation of 778. Does the sample provide evidence that the average number of social ties for a cell phone user is significantly different from 634, the hypothesized number for all US adults?

Answer:

The sample does not provide evidence that the average number of social ties for a cell phone user is significantly different from 634.

Explanation:

First, it is necessary to find out if the average number of social connections for a cell phone user is significantly different from 634 people. For this, we will consider:

H₀: The average number of social connections for a cell phone user is 634 people. For this we will use μ = 634.

Hₐ: The average number of social connections for a cell phone user is different from 634 people. For this we will use μ ≠ 634.

After these considerations we will adopt the following information:

n = 1700

'X = 664

SD = 778

We can see that the size of the sample is very large and as the population is unknown, we will use the concepts of the central limit theorem and adopt the average sample distribution in the same way as the normal distribution. For this reason, a single mean z test will be appropriate in this case.

After understanding the information, we can calculate the test value. For this it will be necessary to use the formula:

z= ('x-μ)/(SD/√n)

z =(664-663)/(778/√1700) = 1.59

When finding this value, you must take into account whether the p-value of the test is less than the significance level.

The p-value for the two-tailed test is found by the formula:

p - value = 2 * P (Z> 1.59)

p - Value = 2 [1-P (Z> 1.59)

p- value = 2 * (1-0.944) = 0.112

The p-test reveals a very high value in relation to the level of significance and shows that the null hypothesis must be rejected. Based on this, we can say that we have no factor that proves that the average number of social connections for a cell phone user is different from 634 people.

4 0
3 years ago
how did Egypt's most powerful rulers leave their marks on history? Please help I need to finish my homework or I will get in tro
arsen [322]
The famous Pharaoh Khufu was the one responsible for building the great pyramids of the Old Kingdom. He was the one famous for making the Great Pyramid of Giza which was considered the biggest pyramid in Egypt. Pharoah Senusret I concentrated his efforts on religious development. He built many temples and shrines that was made for worship. Literature also flourished during this time under the rule of this Pharaoh. Pharaoh Hatshepsut was known as the first female Pharaoh. She was the one responsible for more trades between Egypt and other countries in Africa. Pharaoh Ramses II was the one who built the most monuments. He was also a strong leader who garnered a very powerful army. He was also the longest reigning Pharaoh. 
7 0
3 years ago
Read 2 more answers
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