EXAMPLE 6.16 Bottle Fill Amount: The Hypotheses

CASE 6.1 For Examples 6.13 and 6.14 (pages 317 and 318), the hypotheses are stated in terms of the mean fill amount for all bottles:

The estimate of is the sample mean . Because is two-sided, values of far from 473 on either the low or the high side count as evidence against the null hypothesis.