Question: A battery company has collected data from a voltmeter on AA batteries. The data was charted on a control chart and the system was found

A battery company has collected data from a voltmeter on AA batteries. The data was charted on a control chart and the system was found to be stable. The histogram showed a normal distribution. The voltage specifications are 1.000 to 1.010.

Complete a capability analysis using this data. X is 1.0053, R is .0025, and the subgroup size is 5.

Answer the following, showing your work?

1) What is the X-bar?

2) What is the estimated standard deviation?

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