Question: Problem 3. The time to replace vehicle wiper blades at a service center was monitored using men and a range chart. Six samples of -

Problem 3. The time to replace vehicle wiper blades at a service center was monitored using men and a range chart. Six samples of - 20 observations were obtained and the sample means and angen computed: Sample Moan Hange Sample Men Range 1 3.06 42 4 3:13 46 2 2.15 150 3.00 40 3 3.11 D 41 8 3.00 45 Using the factors in Table 10.3, determine upper und lower limits for me and mye charts b. Is the proces in control? For Part b, draw the mean and the range charts using excel preferred) or by hand

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