### Introduction to MINITAB in the Saint Mary's Microcomputer
Lab

### XIII. Generating random numbers

Minitab will generatea list of random
numbers (for use in selecting a sample from a listed population,
etc.) following any of several distributions.

### Random integers:

This produces a list of integers taken
at random [all values equally likely, each choice independent
of others] from a specified range of values. (Useful for selecting
a random sample from a listed population - as in using a random
number table, you will need to skip repeated values if you are
using this for sampling.)

Select **Calc>Random Data>Integer**

Type the number of random numbers (usually your sample size or
a bit more) in the "Generate . . . rows of data" box.

Put the name of an unused column (you can see a list of the columns
you are using) in the "Store in columns" box.

Put the smallest acceptable value in the " Minimum value
" box, the largest acceptable value in the " Maximum
value " box.

If you want a printed copy of the list, use the **File>Display
Data** command to put this column into your "Session"
window (see V. Description ) - it will then be printed when you print
the Session window (see VI. Saving
and printing your work ).

The other options for **Calc>Random
Data** allow you to obtain random numbers following the various
distributions named there.

In general, you will need to enter the parameters for the distribution
you select (n and p for binomial, mean and standard deviation
for normal, etc.)

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Last update 8/21/2000

*Maintained by cpeltier@saintmarys.edu*