In a large clinical trial, 393,031 children were randomly assigned to two groups. The treatment group consisted of 196,774 children given a vaccine for a certain disease, and 25 of those children developed the disease. The other 196,257 children were given a placebo, and 98 of those children developed the disease Consider the vaccine treatment group to be the first sample. Identify the value ^^ of n₁. P₁. 9₁. ₂. P₂. 92. P. and q ng=0

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