BIOMlab, Statistical Concepts & Principles Lab, Version 1.0

BIOMlab is a program to help you and your students develop a better understanding of statistical principles. This is done through sampling experiments. You can set up alternative sampling models and then study the consequences of changes in sample sizes, distributional assumptions, data transformations, and alternative tests of hypotheses.

The User Manual includes detailed instructions on how to install and operate the program. It also includes summaries of relevant statistical theory.

SAMPLE-random samples are drawn and a histogram and various statistics are shown. Samples can be taken from the normal, uniform, lognormal, Chi-square, t, F, and exponential distributions. Data may be transformed.

CENTRAL-samples of means rather than individual variates are taken. Can use to demonstrate central limit theorem and the null distribution for ANOVA.

CONFIDENCE-displays random samples of confidence limits based on either sample or parametric variances.

ERROR-TYPES-displays expected distribution of sample means under the null and alternative hypotheses. Shows probability of a Type II error, power curve, and areas under the normal curve.

CORRELATION-draws correlated bivariate samples from normal, uniform, or lognormal distributions. Shows bivariate scatter diagram, principal axes and summary statistics. Transformations can be applied to each of the variables.

REGRESSION-draws random samples from a series of populations whose means depend upon the variable X. The distribution of values, sample means, and regression lines are shown. Samples can be taken from normal, uniform, and lognormal distributions and transformations can be applied.

Requirements: PC compatible, 256K RAM, DOS 4.0+. Can run as a DOS program under Win95. Graphics monitor not required. Math coprocessor used if present.

Cost: $90. 10-user classroom license is $300.

Note: while this is an old DOS program, it is still listed because some find it useful.

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