AP Statistics / Unit 4: Inference for Quantitative Data: Means

4.4 Setting Up a Test for a Population Mean or Population Mean Difference

3 practice questions

Notes

$H_0:\mu=\mu_0$; $H_a:\mu>\mu_0$, $<\mu_0$, or $\ne\mu_0$.
For paired data: $H_0:\mu_d=0$.
Check random, 10%, and normal/large sample conditions.

Practice

A bottler claims 500 mL; you suspect less. $H_a$:

Paired test null hypothesis:

With $n=15$, the normal condition is checked by:

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