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Curated Video
Reducing Margin of Error with Simulation and Sample Size
This video explains how to use simulation to decrease the size of a confidence interval, using the example of a cafeteria manager who wants to know how many parents of school children believe that school lunches are satisfactory. The...
Khan Academy
Khan Academy: Statistics: Comparing Population Proportions 1
Video is the first of two parts to demonstrate an example using election statistics to compare the population proportions of the women and men who voted for a particular candidate. This first video just shows how to calculate the mean...
Khan Academy
Khan Academy: Statistics: Comparing Population Proportions 2
Video is the second of two parts to demonstrate an example using election statistics to compare the population proportions of the women and men who voted for a particular candidate. The first video showed how to calculate the mean and...
Texas Education Agency
Texas Gateway: Study Edge Statistics: Variability in Sample Proportions, Part 1
This lesson models how to solve problems involving samples of populations and the variability in the results of a statistical study. Provides a link to an interactive web app called "Sampling Distribution of the Sample Proportion."...
Texas Education Agency
Texas Gateway: Study Edge Statistics: Variability in Sample Proportions, Part 2
This lesson continues an exploration of variability in sample proportions that was begun in the Part 1 video, extending the ideas. About four minutes in, it provides a link to an interactive web app called "Sampling Distribution of the...
Texas Education Agency
Texas Gateway: Study Edge Statistics: Confidence Interval for One Proportion
This lesson models how to construct and interpret a confidence interval in a problem about teens' use of Snapchat. Includes downloadable study guide with exercises - guide also covers other topics. [10:31]
Khan Academy
Khan Academy: Statistics: Hypothesis Test Comparing Population Proportions
Video demonstrates the steps of a hypothesis test involving comparing population proportions. It shows setting up the null and alternative hypotheses and the steps used to calculate a z-statistic for the difference of the proportions and...
Sophia Learning
Sophia: Putting It All Together: Z Test for a Population Proportion
This lesson will implement a z-test for a population proportion to help determine if there is a difference in M&M color ratios between actual store bought bags of M&Ms and what the Mars Co. claims are the actual ratios. Student...