Morgan has calculated the upper and lower limit for control limits in an chart, and determines the out-of-control behavior she observed might be due to the fact that she was using an extremely small sample. Therefore, she quadruples her sample size, and the sample is now much larger than even her original sample. Unfortunately, she forgets to adjust the upper and lower limits again to reflect the much larger sample size. What is likely to occur as she manually plots observations on the chart?

Question

Morgan has calculated the upper and lower limit for control limits in an  chart, and determines the out-of-control behavior she observed might be due to the fact that she was using an extremely small sample. Therefore, she quadruples her sample size, and the sample is now much larger than even her original sample. Unfortunately, she forgets to adjust the upper and lower limits again to reflect the much larger sample size. What is likely to occur as she manually plots observations on the chart?

Quizplus · Accepted Answer

The Answer of Morgan has calculated the upper and lower limit for control limits in an  chart, and determines the out-of-control behavior she observed might be due to the fact that she was using an extremely small sample. Therefore, she quadruples her sample size, and the sample is now much larger than even her original sample. Unfortunately, she forgets to adjust the upper and lower limits again to reflect the much larger sample size. What is likely to occur as she manually plots observations on the chart?

Morgan Has Calculated the Upper and Lower Limit for Control