A production process is designed to ill boxes with an
A production process is designed to ill boxes with an average of 14 ounces of cereal. The population of filling weights is normally distributed with a standard deviation of 2 ounces. Inspectors take periodic samples of 10 boxes. The following sample means are obtained.

a. Construct an x chart. Plot the sample means on the x chart.
b. Can the firm conclude that the production process is operating properly? Explain.

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