Professional dancer, choreographer, educator and AmSAT (American Society for Alexander Technique) certified teacher, KC Chun-Manning explains âThe Alexander Technique (AT) has affected EVERY aspect of my life and how I live in my body, allowing for increased skill, clarity, integration and better choice-making.
The two-sample t-test is a hypothesis test for answering questions about the mean where the data are collected from two random samples of independent observations, each from an underlying normal distribution: The steps of conducting a two-sample t-test are quite similar to those of the one-sample test. And for the sake of consistency, we will focus on another example dealing with birthweight and prenatal care.
The single-sample t-test compares the mean of the sample to a given number (which you supply). The independent samples t-test compares the difference in the means from the two groups to a given value (usually 0). In other words, it tests whether the difference in the means is 0.The dependent-sample or paired t-test compares the difference in the means from the two variables measured on the same set of subjects to a given number (usually 0), while taking into account the fact that the scores are not independent.est statistics. g. writing score-reading score-This is the value measured within each subject: the difference between the writing and reading scores. The paired t-test forms a single random sample of the paired difference. The mean of these values among all subjects is compared to 0 in a paired t-test.