Showing 1 - 10 of 13
Traditional statistical process control charts assume that observations are independent and normally distributed about some mean. We investigate the robustness of traditional charts to data correlation when the correlation can be described by an ARMA(1,1) model. We compare the performance of the...
Persistent link: https://www.econbiz.de/10009204582
A methodology for determining optimal sampling plans for Bayesian multiattribute acceptance sampling models is developed. Inspections are assumed to be nondestructive and attributes are classified as scrappable or screenable according to the corrective action required when a lot is rejected on a...
Persistent link: https://www.econbiz.de/10009209121
Hypertension is one of the most important risk factors with respect to coronary heart disease and stroke. The benefits of early detection of hypertension and the subsequent design of follow-up treatment programs are well documented. Consequently, screening programs have been designed to identify...
Persistent link: https://www.econbiz.de/10009204451
The impact of a decision maker's risk aversion on the choice of an optimal sampling plan is empirically examined for various batch sizes and prior distributions of the process quality level. These plans are compared to those of the classical linear cost model. The comparisons show that...
Persistent link: https://www.econbiz.de/10009191217
Manufacturing systems typically contain processing and assembly stages whose output quality is significantly affected by the output quality of preceding stages in the system. This study offers and empirically validates a procedure for (1) measuring the effect of each stage's performance on the...
Persistent link: https://www.econbiz.de/10009218124
A lower bound on the total error in an accounting population is required, in conjunction with the point estimate of the total error amount and the upper bound, when adjusting an account to determine the amount of the adjustment. This paper extends the multinomial methodology for obtaining an...
Persistent link: https://www.econbiz.de/10009197664
Motivated by an aggregate production-planning problem in an actual global manufacturing network, we examine the impact of exchange-rate uncertainty on the choice of optimal production policies when the allocation decision can be deferred until the realization of exchange rates. This leads to the...
Persistent link: https://www.econbiz.de/10009209117
A double screening procedure (DSP), which controls for individual unit misclassification error (IME) as well as average outgoing quality (AOQ), for quality control applications is developed. Screening involves selecting items whose performance is within specifications based on observing one or...
Persistent link: https://www.econbiz.de/10009204507
An interactive goal programming approach for assessing scenario probabilities used in long-range forecasting and decision analysis is developed and illustrated using a small numerical example. The method only requires marginal event probability and ordinal or interval first-order conditional...
Persistent link: https://www.econbiz.de/10009208754
"Public agencies are very keen on amassing statistics---they collect them, add them, raise them to the nth power, take the cube root and prepare wonderful diagrams. But what you must never forget is that every one of those figures comes in the first instance from the village watchman, who just...
Persistent link: https://www.econbiz.de/10009208823