I also need the LCL to three decimal places

efer to Table S6.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. or each sample, they determine the average maximum speed and the range of the maximum speeds within the sample. be established so that when it shows that the range of a sample is not within the control limits, there is only approximately a 0.0027 probability that this is due to natural variation. he control limits for the chart based on the above requirement for the given information are: UCLR=milesperhour(roundthereponsetothreed Definition efer to Table S6.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. or each sample, they determine the average maximum speed and the range of the maximum speeds within the sample. be established so that when it shows that the range of a sample is not within the control limits, there is only approximately a 0.0027 probability that this is due to natural variation. he control limits for the chart based on the above requirement for the given information are: UCLR=milesperhour(roundthereponsetothreed Definition