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: Retrieval cue.
Explanation: Retrieval cues are scenarios, events or stimulus which triggers a person's memory. It aids or assist in recalling information stored in a person's long term memory. It also assist or aids in awareness or bringing hidden or forgotten task into cognizance by observing or encountering stimulus or events similar to such task.
Marco's memory about an unfinished laundry chores was triggered by observing a stimulus of laundry commercial.
The central domestic issues concerned government regulation of railroads and large corporations
Powerful empires were built, Written and spoken languages were made and perfected, and new technology was created
