# Resource Library

#### Statistical Topic

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• ### Average, Standard Deviation and Relative Standard Deviation

This pdf file gives definitions for average, standard deviation, and relative standard deviation, and works through a short problem as an example.
• ### ** Hypothesis Test for a Mean

This Java applet tutorial prompts the user to input the components of a hypothesis test for the mean. Hints are provided whenever the user enters an incorrect value. Once the steps are completed and the user has chosen the correct conclusion for accepting or rejecting the null hypothesis, a statement summarizing the conclusion is displayed. The applet is supported by an explanation of the steps in hypothesis testing and a description of one-tailed and two-tailed tests.
• ### Multiple Linear Regression

This site gives an explanation, a definition and an example of multiple linear regression. Topics include confidence intervals, tests of significance, and squared multiple correlation.
• ### ANOVA for Regression

This site gives an explanation, a definition and an example of ANOVA for regression. Topics include analysis of variance calculations for simple and multiple regression, and F-statistics.
• ### Experimental Design

This site gives an explanation, a definition of and an example using experimental design. Topics include experimentation, control, randomization, and replication.
• ### Sampling in Statistical Inference

This site gives an explanation, a definition and an example of sampling in statistical inference. Topics include parameters, statistics, sampling distributions, bias, and variability.
• ### Probability Models

This site gives an explanation, a definition and an example of probability models. Topics include components of probability models and the basic rules of probability.
• ### Conditional Probability

This site gives an explanation, a definition and an example of conditional probability. Topics include the probabilities of intersections of events and Bayes' formula.
• ### Mean and Variance of Random Variables

This site gives an explanation, a definition and an example of mean and variance of random variables. Definitions and properties are also included.
• ### Random variables

This site gives an explanation, a definition and an example of random variables including discrete and continuous. It also defines a density curve.