Why Are T Statistics More Variable Than Z Scores
Compared to a z-score a hypothesis test with a t statistic requires more information from the sample. The extra variability is caused by variations in the df value. T Score Vs Z Score What S The Difference Statistics How To The extra variability is caused by variations in the sample mean because means based on small samples are more variable. . A sample of n 4 scores with SS 48 has a variance of 16 and an estimated standard error of 2. A sample of n4 scores has SS60 what is the variance for this sample. If random samples each with n 20 scores are selected from a population and the z-score and t statistic are. The extra variability is caused by variations in the df value. Why are t statistics more variable than z-scores. Variability for t statistics. None of the other options explains the extra variability for t statistics. Both are used extensively when performing hypothesis tests or constructing confidenc...