Calculator — Graphpad Quickcalcs T Test

With a deep breath, she clicked the button: .

For a fraction of a second, nothing happened. Then, like a quiet oracle revealing a prophecy, the numbers appeared. graphpad quickcalcs t test calculator

She scrolled up. The calculator had been generous. It gave her everything: the mean of Group A (12.40), the mean of Group B (10.10). The difference (2.30). The 95% confidence interval of that difference (1.59 to 3.01). The F test for equal variance (passed). The t ratio (7.23). The degrees of freedom (8). With a deep breath, she clicked the button: