20090601
Calculation Re
s
ult Output
Lower :
interval lower limit (left edge)
Upper :
interval upper limit (right edge)
M
:
sample mean
s
x
:
sample standard deviation
n
:
sample size
Example
list1 : { 1.6, 1.7, 1.8, 1.9 }
Significance level : 5% ( = confidence level : 95%)
• Stati
s
tic
s
Wizard Operation
(1) Input the data into [list1] in the Stat Editor.
(2) On the menu bar, tap [Calc] and then [Interval].
(3) Select [One-Sample TInt] and then tap [Next >>].
(4) Input value.
(5) Select List [list1] and Freq [1].
(6) Tap [Next >>].
S
Program, eActivity or Main Application
Command:
OneSampleTInt
:
Command Syntax
Syntax 1 (li
s
t format)
C-Level value, List, Freq (or 1)
* “Freq” can be omitted. Doing so sets “1” for “Freq”.
Syntax 2 (parameter format)
C-Level
value,
M
value, s
x
value,
n
value
Input Example:
Syntax 1 (li
s
t format)
OneSampleTInt 0.95,list1,1
Syntax 2 (parameter format)
OneSampleTInt 0.95,66.3,8.4,12
2-Sample
t
Interval
Menu:
[Interval]-[Two-Sample
TInt]
De
s
cription:
This command obtains the confidence interval for the difference between two
population means when the population standard deviations are unknown.
The confidence interval is obtained using the following expressions.
The confidence level is 100 (1 –
A
)%.
7-10-8
Confidence Intervals
Summary of Contents for ClassPad 330
Page 11: ...20060301 20090601 ClassPad 330 ClassPad OS Version 3 04 ...
Page 277: ...20060301 3 3 10 Storing Functions 3 Tap AND Plot OR Plot ...
Page 779: ...20090601 S Graph Line Clustered C S Graph Line Stacked E 13 9 2 Graphing ...
Page 780: ...20090601 S Graph Line 100 Stacked F S Graph Column Clustered G 13 9 3 Graphing ...
Page 781: ...20090601 S Graph Column Stacked I S Graph Column 100 Stacked J 13 9 4 Graphing ...
Page 782: ...20090601 S Graph Bar Clustered K S Graph Bar Stacked 9 13 9 5 Graphing ...
