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Star Library: Regression on the Rebound
This activity is an advanced version of the "Keep your eyes on the ball" activity by Bereska, et al. (1999). Students should gain experience with differentiating between independent and dependent variables, using linear regression to describe the relationship between these variables, and drawing inference about the parameters of the population regression line. Each group of students collects data...




http://www.causeweb.org/repository/StarLibrary/activities/bu...



Star Library: What Makes the Standard Deviation Larger or Smaller?
The activity is designed to help students develop a better intuitive understanding of what is meant by variability in statistics. Emphasis is placed on the standard deviation as a measure of variability. As they learn about the standard deviation, many students focus on the variability of bar heights in a histogram when asked to compare the variability of two distributions. For these students,...




http://www.causeweb.org/repository/StarLibrary/activities/de...



Star Library: Simulating Size and Power Using a 10Sided Die
This group activity illustrates the concepts of size and power of a test through simulation. Students simulate binomial data by repeatedly rolling a tensided die, and they use their simulated data to estimate the size of a binomial test. They carry out further simulations to estimate the power of the test. After pooling their data with that of other groups, they construct a power curve. A...




http://www.causeweb.org/repository/StarLibrary/activities/bl...



Star Library: Regression  Residuals  Why?
Residual plots and other diagnostics are important to deciding whether or not linear regression is appropriate for a set of data. Many students might believe that if the correlation coefficient is strong enough, these diagnostic checks are not important. The data set included in this activity was created to lure students into a situation that looks on the surface to be appropriate for the use of...




http://www.causeweb.org/repository/StarLibrary/activities/mi...



Star Library: The Role of Probability in Discrimination Cases
An important objective in hiring is to ensure diversity in the workforce. The race or gender of individuals hired by an organization should reflect the race or gender of the applicant pool. If certain groups are underrepresented or overrepresented among the employees, then there may be a case for discrimination in hiring. On the other hand, there may be a number of random factors unrelated to...




http://www.causeweb.org/repository/StarLibrary/activities/hi...

