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Two samples data are tested for equality of standard deviation s
02 Ftest2samp
and s
Example
Test when population standard deviation s
1. Press # S E 1 7 E.
Set the input
method to value
2. Press S E 0 2.
input mode
3. Press ' E } to
4. Enter the values into the
5. Press @ h to
Tests the hypothesis of population mean µ.
03 Ttest1samp
Example
Test the population mean µ
{65.6, 62.8, 66.0, 64.5, 65.1, 65.3, 63.8, 64.2, 63.5, 64.4},
from a given population
(alternate hypothesis of µ < µ
1. Enter the above statistical data into L1.
2. Press S E 0 3.
Chapter 8: Statistics & Regression Calculations
.
2
n
= 20,
1
standard deviation sx
= 5.6,
1
n
= 50, and
2
standard deviation sx
= 6.2
2
The parameter input screen
will appear.
select s
< s
.
1
2
parameter fields.
5.6 E 20 E 6.2 E 50 E.
execute the test.
F: Statistics
p: Probability
Press S E 1 6 E to set the list input
mode.
The parameter input screen will appear.
< s
,
1
2
= 65 with the sample data of
0
)
0
1
169
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