May be from the age of 14 they will learn to use the one word phrases
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
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I'd say B.
It wasn't the last battle that's for sure, and there were not that many American casualties.
Okay, this just goes back to the civil war. one difference between the northern and southern was the idea of slavery.
Answer: A)
Explanation:
A space enclosed within two sets of double solid yellow lines is off-limits and exists as a buffer zone to keep cars apart.
Two sets of double lines that are yellow are indicating those cars who are on the road and they are changing tracks restricted so the answer A is correct and these lines can keep cars apart in a buffer zone.
