Answer:
A
Explanation:
The atmosphere of the cold war led to some of the most important technologies and scientific discoveries to date
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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Answer:
At first you must be sure that your business will produce a profit so you should check the market of the supply and demand and make sure that you won't fold up. Also your business have to bring you joy and pleasure. You should like what you do - it is the main point. If you don't like what you do it will never work properly.
Explanation:
It says he probably thought he was non guilty which he really wasn't
Answer:
Gate control theory.
Explanation:
This question wants to test our knowledge on health Psychology that is to say the perception of pain for instance how high the scale of pain is whether it is Acute or chronic.
Gate control theory explains how the body respond to pain by blocking it. Pain can be blocked through psychological factors or by using neurotransmitters such as endorphins.
According to Gate control theory pain can be blocked by using ng medications such as Narcotics and Analgesics.