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# Resource Library

#### Statistical Topic

Advanced Search | Displaying 71 - 80 of 284
• ### **Probability Histograms

This simulation allows you to roll two dice and compare empirical and probability histograms for the sum or product of the two outcomes.

• ### Analysis Tool: Student's T Tester JAVA Applet

This applet performs the Student's t test on two sets of data, and reports the average and variance for both sets of data, the t score, degrees of freedom, and one and two tailed P values.

• ### Analysis Tool: Student's t-test JAVA Applet

This java applet can be used to determine whether or not the means in two sample populations are significantly different.

• ### Probability Distributions JAVA Applets with Reference Materials

This page of Statistical Java describes 11 different probability distributions including the Binomial, Poisson, Negative Binomial, Geometric, T, Chi-squared, Gamma, Weibull, Log-Normal, Beta, and F. Each distribution has its own applet in which users can manipulate the parameters to see how the distribution changes. The parameters are described on the main page as well as situations that would use each distribution. The equations of the distributions are not given. To select between the different applets you can click on Statistical Theory, Probability Distributions and then the Main Page. At the bottom of this page you can make your applet selection. This page was formerly located at http://www.stat.vt.edu/~sundar/java/applets/

• ### Stat-Attic Statistics Applets for Teaching Topics in Introductory Courses

This site contains links to and descriptions of over 600 applets that can be used for demonstrations or analysis of topics commonly covered in introductory statistics courses.

• ### Statistics Video Presentations

This site presents 19 videos of statisticians summarizing a project that they did. Each video is accompanied by a dataset so that viewers can try to recreate the statistics in the video. Video runtimes vary from about 8 minutes to as many as 35 minutes.
• ### Alpha Level (Significance Level): What is it?

Text resource that covers what type I and II errors are, how to Calculate an Alpha Level for one- and two-tailed tests, and why an Alpha Level of .05 commonly used. There is also a video included at the beginning of the video to explain the topics.
• ### Lecture on Statistical Quality Control

Video that will explain the concepts of attribute and variable data, and procedure for plotting attribute and variable quality control charts & reading different chart patterns.
• ### Statistical Quality Control - Control Charts

Video that explains more about control chart in statistical quality control.
• ### Hypothesis Tests: P-Value & Significance Level

Video that explains what p-values and significance levels are in hypothesis testing.