AP Statisticsmediummcq1 pt
A two-sample t test assumes
A.independent random samples from approximately normal populations
B.the samples are paired
C.σ is known
D.the means are equal
Explanation
Core Concept
These conditions support t inference.
Correct Answer
Aindependent random samples from approximately normal populations
More Unit 7: Inference for Quantitative Data: Means practice questions
- mediumA test computes t = 2.3 with df = 15, giving a small p-value. The interpretation is
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