Question
In the media, numerous surveys are often displayed reporting percentages or proportions. A margin of error is often reported in the survey and this is used to calculate confidence intervals. Why is it important to create/report confidence intervals (CI) rather than just reporting the averages or proportions? is it better to use 95% confidence interval or 99% confidence interval?
Answers
The CI gives some indication of how accurate the data is. Do you believe the 4% difference is important?
Related Questions
A survey of 480 high school students found that 37% had a pet. Find the margin of error. Round to th...
THERE ARE ESTIMATES OF THE MARGIN OF ERROR FOR CONFIDENCE LEVELS OTHER THAN 95%. FOR A 90% CONFIDENC...
Statisticians like preciomen in their interval estinutes. A low margin of error is needed to achieve...
As the confidence level for a margin of error increases, what happens to the margin of error itself?...