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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The purpose is to commemorate past events that had value to that society.
The relief that found in ancient society usually depict several event that helps historians decipher the events that happened in the fast, such as the polices made by the kings, the military accomplishments of a certain prince or general, the gods that they worshipped, etc.
Answer:
I think this is about you not about is so you have to ask your mind about your hobbies and ambition .
Explanation:
Everybody have their own things bro...
I'm not very sure of the answer but i did find a timeline that might help you figure out who ruled from the 1200s to the mid 1300s.
https://web.cn.edu/kwheeler/timeline_1200.html