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This was a sample not a full test of all sailors on the ship and it was based on serology tests as developed by April. > about 400 volunteers participated in t
by thephyber 6y ago
This was a sample not a full test of all sailors on the ship and it was based on serology tests as developed by April.
> about 400 volunteers participated in the serology tests
> The Roosevelt has about 4,800 personnel on the ship.
- throwaway894345 6y agoThis sample is statistically significant. Not sure what the problem is?
- beervirus 6y agoIt’s not a random sample.
- JPKab 6y agoIn the sense that they requested 1,000 volunteers, and 400 signed up? Do you mean it's a selection bias due to only a certain kind of person who signs up for these things getting tested?
- ipsum2 6y agoPeople would sign up if they suspected they had coronavirus based off of their symptoms.
- deleted 6y ago[deleted]
- thephyber 6y agoThis comment thread is about antibodies. There was a different line of testing for who actually had the active virus/disease which included far more sailors from the ship: > As of Monday, the Navy had tested 94 percent of the crew for the virus, with 678 positive and 3,904 negative results. [1] https://www.politico.com/news/2020/04/21/navy-extends-isolation-for-uss-theodore-roosevelt-sailors-may-delay-ship-departure-198081 https://www.politico.com/news/2020/04/21/navy-extends-isolat...
- bronzeage 6y agoYes, correlation between suspicion of infection to volunteering to testing positive. If they wanted to know how many felt symptoms they would survey them. Wouldn't jump to conclusions.