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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Answer:
What are possible advantages and disadvantages of using automatic withdrawal to pay bills?
<em>Postal Service mail carriers deliver mail to homes and businesses in cities, towns, and rural areas. Most travel established routes, delivering and collecting mail. Carriers cover their routes by foot, vehicle, or a combination of both.</em>
Answer:
used an analogy
Explanation:
Based on the information provided within the question Terry seems to have used an analogy to solve his problem. An Analogy is a comparison between one to completely different things. Since he thought the cake looked like the a bridge he saw previously he used the bridges support system design in order to hold up the cake.
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