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    How to build x and R chart

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    When set at the standard position, Autopitch can
    throw hard balls toward a batter at an average speed
    of 60 mph. Autopitch devices are made for both
    major- and minor-league teams to help them improve
    their batting averages. Autopitch executives
    take samples of 10 Autopitch devices at a time to
    monitor these devices and to maintain the highest
    quality. The average range is 3 mph. Using controlchart
    techniques, determine control-chart limits for
    averages and ranges for Autopitch.

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    Solution Summary

    The solution provides steps how to find out x and R chart.