AP Statisticshardmcq1 pt
The t interval for a mean is valid when
A.the sample is random and the population roughly normal or n is large
B.the population is heavily skewed with tiny n
C.the sample is handpicked
D.σ is known
Explanation
Core Concept
These conditions justify t procedures.
Correct Answer
Athe sample is random and the population roughly normal or n is large
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
- easyA one-sample t interval's conditions include
- hardWhich pairing of procedure and data is correct?
- mediumA two-sample t test with t = 0.1 likely gives
- hardFor the same confidence level, which has the largest critical value?
Practice more AP Statistics questions with full explanations
Practice Unit 7: Inference for Quantitative Data: Means Questions →