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A survey asked 120 working teenagers how satisfied they are with their current employment. Ninety teens said they are mostly satisfied with their current employment. The margin of error for the survey is +/-3%. Find the interval in which the actual percent is likely to lie. *

 

117% to 123%

72% to 78%

4.5% to 10.5%

 Apr 27, 2021
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90 out of 120 is 3/4 or 75%.  Allow +3% and your range is 72% to 78%.   

.

 Apr 27, 2021

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