Texas Education Agency
Texas Gateway: Tea Statistics: Confidence Intervals: Practice
A large collection of practice problems on confidence intervals.
Khan Academy
Khan Academy: Interpreting Confidence Levels and Confidence Intervals
When we create a confidence interval, it's important to be able to interpret the meaning of the confidence level we used and the interval that was obtained.
CK-12 Foundation
Ck 12: Statistics: Confidence Intervals
[Free Registration/Login may be required to access all resource tools.] This Concept introduces students to using and interpreting confidence intervals.
CK-12 Foundation
Ck 12: Algebra Ii: 6.5 Confidence Intervals
Explore the idea of a confidence interval where it is easier to predict that an unknown value will lie somewhere within a wide range, than to predict it will occur within a narrow range.
Khan Academy
Khan Academy: Interpreting a Confidence Interval for a Mean
After we build a confidence interval for a mean, it's important to be able to interpret what the interval tells us about the population and what it doesn't tell us.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Confidence Intervals
Students learn about confidence intervals. Topics explored are the Central Limit Theorem, large sample confidence intervals, and confidence intervals for small samples. The tutorial investigates the statistics concept through class notes...
Texas Instruments
Texas Instruments: Confidence Intervals for Means
This set contains questions about statistics regarding confidence intervals for means. Students analyze the relationship, concerning means, between confidence levels and the length of confidence intervals.
Texas Instruments
Texas Instruments: Confidence Intervals for Proportions
The student will use the TI-83 Plus/TI-84 Plus to calculate confidence intervals for proportions.
Texas Instruments
Texas Instruments: Confidence Intervals
Learn to use the TI-89 to construct confidence intervals either using data or using sample statistics. The activity has step-by-step calculator instructions along with calculator screen prints.
Texas Instruments
Texas Instruments: Estimating and Finding Confidence Intervals
In this activity, students estimate statistical measures and find confidence intervals.
Khan Academy
Khan Academy: Interpreting a Z Interval for a Proportion
Once we build a confidence interval for a proportion, it's important to be able to interpret what the interval tells us about the population, and what it doesn't tell us. Let's look at few examples that demonstrate how to interpret a...
Texas Education Agency
Texas Gateway: A Single Population Mean Using the Normal Distribution
This lesson explains how to calculate and interpret the confidence interval for a population mean. It also looks at the effect on the confidence interval of changing the confidence level or sample size. It then explains how to find the...
Khan Academy
Khan Academy: Reference: Conditions for Inference on a Proportion
When we want to carry out inferences on one proportion (build a confidence interval or do a significance test), the accuracy of our methods depend on a few conditions. Before doing the actual computations of the interval or test, it's...
Khan Academy
Khan Academy: Reference: Conditions for Inference on a Mean
When we want to carry out inference (build a confidence interval or do a significance test) on a mean, the accuracy of our methods depends on a few conditions. Before doing the actual computations of the interval or test, it's important...
Texas Instruments
Texas Instruments: Numb3 Rs: Thumbs Up!
Based off of the hit television show NUMB3RS, this lesson introduces students to confidence intervals by using a simulation. Students use a calculator (or random number table) to simulate a situation with a certain success rate, and then...
Texas Instruments
Texas Instruments: Determining Sample Size for a Given Margin of Error
This set contains questions about statistics involving how to choose a sample size to fit a desired maximum error bound. The student learns to do this on confidence intervals for proportions as well as confidence intervals for means.
Texas Instruments
Texas Instruments: Tests of Significance
Students understand how tests of significance can be performed with confidence intervals. They use a simulation to clarify the meaning of a hypothesis. Students examine large sample tests for a proportion, mean, difference between two...
CK-12 Foundation
Ck 12: Statistics: Tests of Single Variance
[Free Registration/Login may be required to access all resource tools.] This Concept introduces students to testing variance using the chi-square distribution as well as creating a confidence interval for the variance.
Other
Magoosh: Statistics Fundamentals
An online course on the fundamentals of statistics including video lessons in Mean, Median, and Mode; Weighted Averages; Quartiles and Boxplots; Range and Standard Deviation; Normal Distribution; Z-scores; Intro to Inferential...
Khan Academy
Khan Academy: Making a T Interval for Paired Data
In some studies, we make two observations on the same individual. For instance, we might look at each student's pre-test and post-test scores in a course. In other studies, we might make an observation on each of two similar individuals.
Richland Community College
Richland Community College: Coefficient of Determination
This site from the Richland Community College provides a complete definition of the coefficient of determination is provided here, along with related topics: coefficient of non-determination finding variations, standard error of an...
Texas Instruments
Texas Instruments: Inference for Correlation and Regression
In this activity, students test if a significant relationship exists between a bivariate data set, and then calculate the confidence and predictive intervals. They also improve the interval-prediction capabilities by automating the process.
Massachusetts Institute of Technology
Mit: Open Course Ware: Introduction to Probability and Statistics
The online course consists of educational materials about probability and statistics. Lecture notes, exams, and assignments are included.
Wolfram Research
Wolfram Math World: Standard Deviation
This World of Mathematics site by Eric Weisstein explains the term "Standard deviation." Provides step-by-step help, examples, and charts.