Answer:
1956" (and any subsequent words) was ignored because we limit queries to 32 words.
You can use ur car less or recycle stuff and turn off electric devices if they are not being used
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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Answer:
vigorous , strong are the other words for powerful
Shaping.
This question has only a one word answer and i hope it helps.
