The t-test hypothesis

Particular hypothesis tested by the t-test:

• H₀: μ_A = μ_B (null hypothesis)
• H_A: μ_A ≠ μ_B (alternative hypothesis)

Note: μ is the parameter called the mean, the location parameter of the normal distribution. For a symmetric distribution like the normal distribution it can be found in the center, where the peak (or mode) is.

Part of Dr. Doug Elrod's Theory Behind the t-Test Talk