An unknown white powder is tested by an antibody based detection system. The test does not indicate the presence of anthrax, yet the sample did…

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1.     An unknown white powder is tested by an antibody based detection system. The test does not indicate the presence of anthrax, yet the sample did contain B. anthracis spores. This is an example of:

a.      Sampling error

b.     A false positive

c.      A false negative

d.     A neutral error

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