Question: Why are t statistics more variable than z-scores? Question 22 options: The extra variability is caused by variations in the sample mean. The extra variability

Why are t statistics more variable than z-scores? Question 22 options: The extra variability is caused by variations in the sample mean. The extra variability is caused by variations in the sample variance. The extra variability is caused by variations in the df value. None of the other options explains the extra variability for t statistics.

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