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.
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D as some countries don’t have certain things as other countries have more than they need so they trade the item for another item.
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Terrorism constitutes a real threat to democracy, the rule of law and the enjoyment of human rights. As such it must be countered through prevention and suppression by the member States of the Council of Europe. However, poorly implemented or overly Draconian counter-terrorism measures can be counterproductive. While law enforcement operations aimed at terrorists are necessary and justified, counter-terrorism measures should not go beyond what is necessary to maintain peace and security, nor should they subvert the rule of law and democracy in the cause of trying to save it.
The important result of the Union victory at Vicksburg was that the Union now controlled the Mississippi River. The correct option among all the options given in the question is option "A". This also helped the Union to cut off most of the Western States from the hands of the Confederate army. Also the Union had the control over the food supplies and this made the Confederate army surrender quickly.
Answer:
Incorrect
Explanation:
The correct answer is The Jetsons
