Children Who Flew in an Trans-Atlantic Airplane Have Been Exposed

question 13

Multiple Choice

Children who flew in an trans-Atlantic airplane have been exposed to the new virulent strain of influenza. A laboratory has developed a 6-minute antigen assay from nasal swabs to diagnose the disease. The lab ran this test on 1000 samples. In a longer test that is considered the gold standard assay, 200 of these samples were found to be true positives and 800 true negatives. When tested by the new antigen assay, 150 of the true positives tested positive, and 790 of the true negative samples tested negative.
What is the efficiency of the assay?

• A)94.00%
• B)90.00%
• C)96.75%
• D)95.00%

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Definitions:

Increase Production

The process of raising the output or quantity of goods and services produced by a firm or country.

Nonrefundable Ticket

A ticket purchase that cannot be returned for a refund, often cheaper than refundable options and common in air travel.

Remainder

The amount left over or remaining after division or allocation.

Alternative

An option or choice that is available as a substitute or replacement for something else.