One and Two Sample t-Test

The t-Test determines whether a sample is representative of a known population or whether two samples are likely to be from the same population. Origin's t-Test tools have been redesigned to increase user-friendliness and analytical power. New dialog boxes save valuable time by allowing you to select data, specify input and outputs options, and perform your tests without having to close and reopen a dialog box. You can now specify one- or two-tailed tests by choosing from one of three alternate hypotheses. Simultaneously compute confidence intervals for multiple confidence levels, and compute actual power at a specified alpha level and hypothetical power for varying sample sizes.