Two-sample t-test: Tests H0: mu1 = mu2 using t = (x-bar1 minus x-bar2) / sqrt(s1 squared/n1 + s2 squared/n2).
How to apply it: Use technology or the conservative df = min(n1, n2) minus 1 for the degrees of freedom.
Course: AP Statistics · Unit: Inference for Quantitative Data: Means
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