If you have samples of n 1 equals 22 and n 2 equals 20, in performing the pooled-variance t test, you have 40 degrees of freedom.
The t-test method is a method where we analyze two sets of data which both these data are independent of each other. This pooled variance test helps us in getting the overall variance in both these different sample sets when we know that both the sample sets are almost equal.
To calculate degrees of freedom, we have the formula
df = n1 +n2 -2
According to the question, n1= 22 and n2= 20
Therefore, degree of freedom= 22 +20 -2 = 40
Hence, degree of freedom is 40.
To learn more about t-test, click
brainly.com/question/15870238
#SPJ4
Answer:
One of the roles of Federal courts is to review cases that have been appealed in the state courts, Option A.
Explanation:
Federal courts hear many cases like the cases which involve constitutionality of a law. There may be cases which involves treaties of public ministers or Ambassadors, disputes between two or more states can also be resolved by federal courts.
In 1950s, though the Constitution had stated that everyone is equal but still African Americans were not always treated equally. Federal courts could take cases that have been appealed in state courts, in case the concerned person is not happy with the result.
Answer:
Andrew Jackson was the seventh President of the United States from 1829 to 1837
Explanation:
May i ask why do you need this
Answer:
The General Assembly
It has been called the "town meeting of the world." Its specific duties include the election of the members of the Economic and Social Council, the board of the UN Industrial Development Organization, and some members of the Trusteeship Council.
The answer is more because according to the definition of the theory of social facilitation, social facilitation is the tendency for people who are being watched or observed to perform better than they would alone on simple tasks (or tasks they know how to do very well due to repetition).
Answer: more