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Casio CLASSPAD 330 3.04 User Manual

Page 450

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20090601

Calculation Result 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%)

• Statistics 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 >>].

SProgram, eActivity or Main Application

Command: OneSampleTInt

:

Command Syntax

Syntax 1 (list 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 (list 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]

Description: 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 –

7-10-8

Confidence Intervals