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A USA today article about an experimental nasal spray vaccine for children started. In a trial...

A USA today article about an experimental nasal spray vaccine for children started. In a trial involving 1602 children only 14 out of the 1070 who received the vaccine developed the flu , compared with 95 out of the 532 who were given the placebo . Using a .01 significance level Tests the claim that the vaccine is effective against the flu.
math   Statistics-And-Probability   
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