use today reported that 40% of people surveyed planned to use accumulated loose change for paying...
use today reported that 40% of people surveyed planned to use accumulated loose change for paying bills. the margin of error was given as +-3.1 percentage point. identify the confidence interval that corresponds to the information. round percentages to 1 decimal place
__< p < __
Homework Answers
solution
In the form of :
- E < p <
+ E is,
0.40-0.031 < p <0.40+0.031
0.369<p<0.431
3.7%<p<4.3%
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use today reported that 40% of people surveyed planned to use
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