Testing of Body Armor Materials Phase III (2012) / Chapter Skim
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Appendix I Analytical Approaches for Comparing Test Protocols
Appendix I Analytical Approaches for Comparing Test Protocols
Pages 302-304
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From page 302... ...
Of course, it is possible that, given the lack of statistical rigor, substandard body armor passed both FAT and LAT or, conversely, fully acceptable body armor failed either FAT or LAT. It is also possible that body armor has failed in the field and the evidence of such failure has been lost, or that substandard body armor that inadvertently passed FAT and/or LAT simply has not been put to the ultimate test.
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From page 303... ...
That is, by using actual historical data drawn from passed tests, one does not have to make any parametric assumptions about the distribution of backface deformation (BFD) , nor estimate the probability of penetration, nor try to model whether and how the two measures are jointly distributed.
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From page 304... ...
that will be used to assess only one protocol. If the two protocols require a different sample size, randomly select the smaller sample size from the simulated test data.
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