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In making equipment that automatically fills drinks what type of control chart would you use C-chart...

In making equipment that automatically fills drinks what type of control chart would you use

C-chart

P-chart

X-bar-chart

R-chart
Math   Statistics-And-Probability   
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Homework Answers

Answer #1

X-bar chart and R-chart together

Reason: If you look at bottles of a drink, you will notice that no two bottles are filled to exactly the same level. Some are filled slightly higher and some slightly lower. The mean or x-bar chart measures the central tendency of the process, whereas the range chart measures the dispersion or variance of the process. Since both variables are important, it makes sense to monitor a process using both mean and range charts. It is possible to have a shift in the mean of the product but not a change in the dispersion. Because a shift in either the mean or the range means that the process is out of control, it is important to use both charts to monitor the process.

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