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:
most casualties in a battle ever
Explanation:
this war was the only point america could push to get into france, if it had failed all of those men wouldve died, and we wouldve lost the war
It is called a Referendum
hope this helps
