Homework Problems

Problem Sets

Data Sets

Speadsheet Notes

Main Page

Java Applets

• Table for standard normal and T distributions.
• Table for F and Chi-Square distributions .
• Short notes on random variables and estimation.
• Steps of hypotheses testing.
• Summary of decision rules for some of the hypotheses tests.
• An illustration of how Type II Error (when testing for the mean) changes as some of the variables change.
• An alternatice illustration of how Type II Error (when testing for the mean) changes as some of the variables change.
• An EXCEL file showing the probability of Type I and Type II errors when testing H₁: σ²≠ σ₀² against H₀: σ²=σ₀² using the test statistic (n-1)s²/σ₀.