In a manufacturing process, what is random variation? If cereal boxes are being filled by a machine, describe how random variation might affect the content weight of the individual boxes.
Answer to relevant QuestionsWith respect to the null hypothesis, “H0: The process is in control,” explain the distinction between a Type I error and a Type II error. Measured at the lid center, the thickness of the zinc coating applied to container lids averages 3.000 mil, with a process standard deviation of 0.300 mil. Determine the centerline and the upper and lower control limits for ...Twelve samples have been taken from a production run. Given the following data, construct a 3-sigma p-chart and evaluate whether the process is in control. Can the Process Capability Index (Cpk) ever be greater than the Process Potential Index (Cp)? If so, how? If not, why not? A process has generated the output (in ounces) listed in file XR20064. a. For a series of samples, each with n = 5, construct and interpret the x-bar and range charts for this process. Does it appear to be in control? b. ...
Post your question