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find the value of the test stastist z using z=p-p divided by square root of pq over The claim is that the proportion of drowning
find the value of the test stastist z using z=p-p divided by square root of pq over The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statistics include n=698 drowning deaths of children with 30% of them attributable to beaches
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