Statistical analysis of downtime severity rates
提出停机严重率模型及统计方法，用于评估降低停机率的努力和资源分配决策，假设每次停机时间或成本服从伽马分布，并推导单侧统计容差上限，以造纸厂数据为例。
As an aid in evaluating efforts to reduce process downtime rates and to facilitate resource allocation decisions, a model of the downtime severity rate and statistical methods for estimating and evaluating two or more downtime severity rates are presented. Time down or cost per downtime incident is assumed to follow a gamma distribution. An expression for a one-sided upper statistical tolerance limit on the downtime severity rate is derived. Examples of statistical analysis using data from a paper manufacturing facility are provided.