| 单词 | analysis of variance |
| 释义 | analysis of variance analysis of variance(ANOVA; variance analysis)1. A commonly used method for examining the statistically significant differences between the means of two or more populations. In its simplest form (one-way analysis of variance), it involves only one dependent variable (metric measurement level) and one or more independent variables (non-metric). For example, a researcher may be interested in establishing if there is a statistically significant difference in the average amount spent on alcohol per week between two samples of population (say, male and female). Here, the dependent variable is the amount spent and the independent variable is the gender of the participants. analytical estimating A work measurement technique enabling an estimate of the time required to carry out the elements of a job to be produced at a defined level of performance. This level is based on previous knowledge, e.g. standard performance and synthetic standard times, and experience of the elements concerned. |
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