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The table shown on the right can be used in a two-sample t-test to estimate the sample sizes of an experimental group and a control group that are of equal size, that is, the total number of individuals in the trial is twice that of the number given, and the desired significance level is 0.05. [4]
In accounting, the inventory turnover is a measure of the number of times inventory is sold or used in a time period such as a year. It is calculated to see if a business has an excessive inventory in comparison to its sales level. The equation for inventory turnover equals the cost of goods sold divided by the average inventory.
The term 'interest rate' used above is an approximation for the economist's discount rate (see below) . It is not the inflation rate or the bank rate but the latter are parts of it. The discount factors (DF) of 0.9091,0.8264, etc. are generated from the 'compound interest' formula: DF = 1/ (1+ r) n. where r is the discount rate
Churn rate (also known as attrition rate, turnover, customer turnover, or customer defection) [1] is a measure of the proportion of individuals or items moving out of a group over a specific period. It is one of two primary factors that determine the steady-state level of customers a business will support.
External turnover, on the other hand, refers to cases in which the worker and employer separates, whether voluntary or involuntary. [9] Skilled vs Unskilled turnover: uneducated and unskilled employees often have a high turnover rate, and they can generally be replaced without the organization or company suffering a loss of performance. The ...
The dynamic lot-size model in inventory theory, is a generalization of the economic order quantity model that takes into account that demand for the product varies over time. The model was introduced by Harvey M. Wagner and Thomson M. Whitin in 1958.
Lot quality assurance sampling (LQAS) is a random sampling methodology, originally developed in the 1920s [1] as a method of quality control in industrial production. Compared to similar sampling techniques like stratified and cluster sampling, LQAS provides less information but often requires substantially smaller sample sizes.
Manufacturing resource planning (MRP II) [1] is a method for the effective planning of all resources of a manufacturing company. Ideally, it addresses operational planning in units, financial planning, and has a simulation capability to answer " what-if " questions and is an extension of closed-loop MRP (Material Requirements Planning).