Confidence Interval:
A confidence interval is an interval that brackets a sample estimate that quantifies uncertainty around this estimate. Since there are a variety of samples that might be drawn from a population, there are likewise a variety of confidence intervals that might be imagined for a given population parameter (though with the observed data you can see only one of them). A 95% confidence interval, for example, is one interval in a set of intervals. The property of this set of intervals is that 95% of the intervals in this set contain the population parameter. Likewise, a 90% confidence interval for the population mean is an interval which belongs to a set of intervals, 90% of which contain the population mean.
Browse Other Glossary Entries
Test Yourself
Planning on taking an introductory statistics course, but not sure if you need to start at the beginning? Review the course description for each of our introductory statistics courses and estimate which best matches your level, then take the self test for that course. If you get all or almost all the questions correct, move on and take the next test.
Data Analytics
Considering becoming adata scientist, customer analyst or our data science certificate program?
Analytics Quiz
Advanced Statistics Quiz
Statistics Quiz
Courses
Find the right course for you
Contact Us
We'd love to answer your questions
Our mentors and academic advisors are standing by to help guide you towards the courses or program that makes the most sense for you and your goals.
300 W Main St STE 301, Charlottesville, VA 22903
(434) 973-7673
ourcourses@statistics.com
