k****n
发帖数: 98 | 1 两台仪器同时测量一个参数. 一台仪器是目前使用的仪器, 另一台是新仪器, 准备取代
这台老仪器. 两台仪器分别为不同厂家生产. 两台仪器针对同一参数的测量结果都不是
正态分布. 同一时间的测量差也不是正态分布.
怎样证明approve Statistical Equivalence of the two testing methods? Many
thanks. | w*******9
发帖数: 1433 | 2 Google "equivalence test". The basic idea is to test whether the means of
these two groups differ by only a quantity within a certain threshold (the
alternative).
However, just like t-test, normality is needed. So if there's no way to
transform the data to "increase normality", I would suggest lz go ahead and
find some the rank based equivalence tests. |
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