📊 T-Test Calculator
Perform one-sample or two-sample t-tests and calculate the t-statistic and approximate p-value.
What is a T-Test?
A t-test determines whether there is a statistically significant difference between group means. The one-sample t-statistic is t = (x̄ - μ) / (s / √n), and the two-sample version compares two group means using pooled or Welch's standard error. The resulting p-value indicates the probability of observing such a difference by chance.
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