Twenty student nurses take the NCLEX examination. If the average of the 20 scores is known, how many degrees of freedom are there in the sample?

Name: Twenty student nurses take the NCLEX examination. If the average of the 20 scores is known, how many degrees of freedom are there in the sample?
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The degrees of freedom for a sample is calculated as the number of observations minus 1. Here, with 20 student nurses (observations), the degrees of freedom are 20 - 1 = 19.

Twenty Student Nurses Take the NCLEX Examination