12th November 2019


Is the T procedures robust against outliers?

The t procedures are robust against non-normality of the population when there are no outliers, especially when the distribution is roughly symmetric and unimodal. When is it appropriate to use the t procedures? n>15: The t procedure can be used except in the presence of outliers or strong skewness.

What is a t distribution table?

In probability and statistics, Student's t-distribution (or simply the t-distribution) is any member of a family of continuous probability distributions that arises when estimating the mean of a normally distributed population in situations where the sample size is small and population standard deviation is unknown.

What is a T score?

T-scores are standardized scores on each dimension for each type. A score of 50 represents the mean. A difference of 10 from the mean indicates a difference of one standard deviation. Thus, a score of 60 is one standard deviation above the mean, while a score of 30 is two standard deviations below the mean.
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