Limits in X-bar and R charts can be calculated based on pre-set parameters such as A2, D3 and D4 because: O All of the alternatives The parameters can lead to good estimates of three-standard deviation control limits given the control sample size and process output means The parameters are more accurate than real distribution estimates The parameters are the best approximations to specification limits used in statistical quality control What of the following statements is true? Drop shipping is more complex for suppliers than shipping directly to retailers All-inclusive costs increase with inter-modal shipments None - all of the statements are false Cross-docking reduces the need for accurate scheduling Inter-modal shipments are enabled by cross-docking systems Limits in X-bar and R charts can be calculated based on pre-set parameters such as A2, D3 and D4 because: O All of the alternatives The parameters can lead to good estimates of three-standard deviation control limits given the control sample size and process output means The parameters are more accurate than real distribution estimates The parameters are the best approximations to specification limits used in statistical quality control What of the following statements is true? Drop shipping is more complex for suppliers than shipping directly to retailers All-inclusive costs increase with inter-modal shipments None - all of the statements are false Cross-docking reduces the need for accurate scheduling Inter-modal shipments are enabled by cross-docking systems