# A machine is used to fill containers with a liquid product. Fill volume can be assumed to

## Question:

(a) Suppose that the manufacturer wants to be sure that the mean net contents exceeds 12 oz. What conclusions can be drawn from the data (use a = 0.01).

(b) Construct a 95% two-sided confidence interval on the mean fill volume.

(c) Does the assumption of normality seem appropriate for the fill volume data?

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