Mathematics, 13.04.2021 01:00, tyijiapostell

3. Five samples of size n=4 were taken from a process. A range chart was developed that had LCLR = 0 and UCLR = 2.50. Similarly, an average chart was developed with the averages from the five samples, with LCL = 15.0 and LCL = 24.0. The ranges for each of the five samples were 1.75, 2.42, 2.75, 2.04, and 2.80, respectively. The values of the sample averages for each sample were 19.5, 22.3, 17.4, 20.1, and 18.9, respectively. What can you tell management from this analysis? Is the average control chart in control? Yes/No ……….. Is the range control chart in control? Yes/No ………….. What is the value of average of averages ………………. What is the value of Average of ranges:………………..

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3. Five samples of size n=4 were taken from a process. A range chart was developed that had LCLR = 0...