Sharp EL-9900

167
Chapter 10: Statistics & Regression Calculations
02 Ftest2samp Two samples data are tested for equality of standard deviation σ
1
and σ
2
.
Example
Test when population standard deviation σ
1
< σ
2
,
n
1
= 20,
standard deviation sx
1
= 5.6,
n
2
= 50, and
standard deviation sx
2
= 6.2
1. Press # S E 1 7 E.
2. Press S E 0 2.
The parameter input screen
will appear.
3. Press ' E } to
select σ
1
< σ
2
.
4. Enter the values into the
parameter fields.
5.6 E 20 E 6.2 E 50 E.
5. Press @ h to
execute the test.
F: Statistics
p: Probability
03 Ttest1samp Tests the hypothesis of population mean µ.
Example
Test the population mean µ
0
= 65 with the sample data of
{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
0
)
1. Enter the above statistical data into L1.
Press S E 1 6 E to set the list input
mode.
2. Press S E 0 3.
The parameter input screen will appear.
Set the input
method to value
input mode