Chapter 9: Introduction to the t Statistic
estimated standard error of M
approximation of the standard distance between a sample mean and the population mean
t distribution
complete set of t values computed for every possible random sample for a sample size
estimated Cohen's d
figure calculated when substituting sample values in place of population values
degree of freedom
figure in a sample that is independent and can vary
t statistic
hypothesis testing tool in which estimated standard error is used in the z-score formula denominator
percentage of variance accounted for by the treatment
measurement of reduction in variability after removing the treatment effect
confidence interval
range of values centered around a sample statistic