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
Injury control or harm reduction
Answer: Castilian, Catalan, Galician, Basque
Explanation:
When you lose your walk away power<span>, you lose your objectivity. Part of having </span>walk away power<span> means having confidence. Confidence means freedom from doubt; belief in yourself and your abilities. </span>Walk away power<span> does not always mean you </span>walk away<span>. It just means you have a choice.</span>
