# QualityMagazine - Brain Teasers Volume 1

## A Filling Operation (July 2000)

*2014-02-19 03:27:34*

Situation
In a small winery, the filling process involves filling bottles with a specified amount of wine, inserting the cork, and applying the appropriate labels. Critical measurements made by the filling operators are the fill height of the wine relative to the top of the bottle, the depth of the cork relative to the top of the bottle, and the gap between the fill height and the cork depth. Each of these characteristics has specifications, which must be strictly followed. All measurements made are compared to the specifications and any out of specification bottles of wine are set aside. To avoid this problem, the winery has decided to begin using SPC as a way to improve the filling process.
Available Data
Data for fill height, cork depth, and gap collected during one production run are available in the table, Filling Process Data. Specifications for these characteristics are included.
Questions
1. Which characteristic should be analyzed using statistical process control (SPC)? Justify your choice.
2. Use the current data to determine if this process can meet cork depth specifications.
3. What is the best way to determine the process capability of the gap between the fill height and the cork depth?

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