What question did this study set out to answer?

This research aims to develop a likelihood ratio test for distinguishing skewness in commingled distributions and estimating mixture parameters.

September 1, 1976Biometrics

Skewness in Commingled Distributions

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Randomized trial reports differentiating skewness in commingled distributions, suggesting improved parameter estimates.

This research aims to develop a likelihood ratio test for distinguishing skewness in commingled distributions and estimating mixture parameters.
Used a likelihood ratio test to assess skewness in commingled distributions.
Applied power transforms to remove skewness for tested alternatives.
Simultaneously estimated means, proportions, and variances of normal distribution components.
Estimates of admixture parameters offer a foundation for more conclusive tests.
Adjustment for skewness demonstrated evidence of commingling in one example.
The approach avoids falsely asserting admixture due to skewness alone.

MacLean et al. (1976) studied this question.

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