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 rescuer who has been ventilating the child informs you that the patient is now breathing adequately, The next thing you should do is Place the child in the recovery posture and halt compressions.
How should I stand to give compressions effectively?
Put your hands directly above your shoulders as you stand. Press firmly down on their chest by 2 to 2.5 inches or 5 to 6 centimeters (not only your arms). Release the compression while keeping your hands on their chest to let their chest return to its original position.
CPR for kids
On a youngster, you should perform CPR using rescue breaths. Children are more likely to experience issues with their airways and breathing than they are with their hearts.
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Answer:
The spark of nationalism in germany and Italy gave their expansionist idea, as they believe they are superior as one race, its nationalism boost the confidence of the nation to wage war with other nations.
Answer:
Roosevelt's "New Deal" aimed at promoting economic recovery and putting Americans back to work through Federal activism. This had the most impact on the Great Depression.
Explanation:
Please take a look at my latest question and see if you can help me.
Answer:
correct answer is option a and d
