A telephone exchange operator assumes that 7% of the phone calls are wrong numbers. If the...

A telephone exchange operator assumes that 7% of the phone calls are wrong numbers.

If the operator is right, what is the probability that the proportion of wrong numbers in a sample of 487 phone calls would differ from the population proportion by more than 3%? Round your answer to four decimal places.

Expert Solution

orchestra answered 2 years ago

A telephone exchange operator assumes that 7% of the phone calls are wrong numbers. Step 1...

A telephone exchange operator assumes that 7% of the phone calls are wrong numbers. Step 1 of 1: If the operator is right, what is the probability that the proportion of wrong numbers in a sample of 487 phone calls would differ from the population proportion by more than 3% ? Round your answer to four decimal places.

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