Press the Draw New Samples button to generate data for two samples. You want to test the following hypotheses:
H0: μ1 - μ2 = 0
Ha: μ1 - μ2 ≠ 0
After viewing the data, enter a guess for the p-value (two-sample t-test) and press Check Guess.
Edit population parameters
, df =
Sample sizes range from 5 to 15; Means range from 20 to 30; Difference in means ranges from 0 to 10; (common) Standard deviation ranges from 3 to 12.
Check the change parameter Edit population parameters box to change these settings/use sliders.
Thanks to Josh Tabor for inspiration on this applet design