Surveys conducted in American high schools concluded that 90% of the students in a sample of 400 students had more than one active email account. What would the margin of error be for the population proportion?

A. 1.5%

B. 3%

C. 4.5%

D. 9%

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31 October, 02:17

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Rohan Shelton · Answer 1

I would say 9% because that's the percentage left over.

Surveys conducted in American high schools concluded that 90% of the students in a sample of 400 students had more than one active email account. What would the margin of error be for the population proportion?A. 1.5%B. 3%C. 4.5%D. 9%