a-poll-claims-that-44-of-adults-prefer-electric-scooters-you-sample-400400-commu

Question

A poll claims that $4 percent sign$ of adults prefer electric scooters. You sample $400$ commuters and find $25$ who prefer electric scooters. Compute the probability that, in a random sample of $400$ commuters, at least $25$ prefer electric scooters assuming the true proportion is $4 percent sign$ .

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Answer

Answer

A poll claims that 4%4\% of adults prefer electric scooters. You sample 400400 commuters and find 2525 who prefer electric scooters. Compute the probability that, in a random sample of 400400 commuters, at least 2525 prefer electric scooters assuming the true proportion is 4%4\%.