Graph the means of the following 10 samples (thickness of
Chapter 25, Problem 25.5(choose chapter or problem)
Graph the means of the following 10 samples (thickness of washers. coded values) on a control chart for means, assuming that the population is normal with mean 5 and standard deviation 1.55. Time 8:008:309:00 9:30 10:00 10:30 11:00 11:3012:00 12:30 13 3 5 7 7 4 5 6 5 5 Sample 4 6 2 5 3 4 6 4 5 2 Values 18 6 5 4 6 3 4 6 6 5 .4 8 6 4 5 6 6 4 4 3
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