MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Fear of the dark is quite common among children. However, what about adults? One polling agency released the results of a survey that asked people over 30
years old if they keep the lights on at night. Among 389 respondents, 18% indeed leave the light on when going to sleep.
Part: 0 / 2
Part 1 of 2
Calculate the margin of error for this survey. Round the percentage to one decimal place. Do not round intermediate steps.
%.
If 18% of 389 respondents keep the lights on at night, the margin of error is
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Transcribed Image Text:Fear of the dark is quite common among children. However, what about adults? One polling agency released the results of a survey that asked people over 30 years old if they keep the lights on at night. Among 389 respondents, 18% indeed leave the light on when going to sleep. Part: 0 / 2 Part 1 of 2 Calculate the margin of error for this survey. Round the percentage to one decimal place. Do not round intermediate steps. %. If 18% of 389 respondents keep the lights on at night, the margin of error is
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