Application Guide

412 Notes Application
Example #2: Using Notes to Explore Data Sampling
This example shows how to create a sampling distribution of sample means drawn
from a given population. We will be able to watch the sampling distribution take shape
for a given sample size and describe its characteristics. You can change the population
and the sample size.
1. Set up the population and the sample size.
a) Type Create sample data:
b) Insert a math expression box and define the population. For example, type
population:=seq(n,n,1,50).
c) Press Enter and hide the output using the Math Expression Box Attributes
dialog box.
d) Insert a math expression box and define the sample size. For example, type
size:=5.
e) Press Enter and hide the output using the Math Expression Box Attributes
dialog box.
2. Set up the initialization.
a) Type Start taking samples:
b) Insert a math expression box and set the initial values for the number of
samples (num) and the list of sample means (sampmeans). Type:
num:=0:sampmeans:={}
c) Press Enter and hide the output using the Math Expression Box Attributes
dialog box.