Examlex
What are the four elements of the database approach? Explain the role of each.
T-statistic
The T-statistic is a type of test statistic used to determine if there is a significant difference between the means of two groups, which may or may not have the same variances.
Significance Level
A precisely rephrased term for the threshold of probability at which we accept or reject the null hypothesis in statistical testing.
T-statistic
A type of statistic used in hypothesis testing, calculated by dividing the difference between the sample mean and the hypothesized population mean by the standard error of the mean.
Alpha
A statistical significance level often set at 0.05 or 5%, indicating the probability threshold below which the observed data are considered statistically significant.
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