This applet converts probability values to z values and vice versa. The simple version converts only right-tail p and z values. The graphic version allows the user to input left-tail p, raw scores, and the mean and standard deviation of the group of interest.
This applet can be used to help visualize the resampling method of bootstrapping. “Resamples” from an original sample can be taken one at a time, or 10,000 at once, ultimately providing a 95% confidence interval for the population mean or median.
This applet teaches fundamental properties of sampling distributions of means such as accuracy of sample means, probability, and effects of sample size.
SDT is a statistical theory of decision making which summarizes a person’s ability to discriminate between different classes of items based upon their correct decisions (Hits) versus their Errors (False Alarams). The applet also plots the Receiver-Operating Characteristics.
An applet which assists in determining group membership based upon test performance, utility of correct and incorrect classification, and population base rates.