Confidence Interval Command List - Casio ClassPad 300 PLUS User Manual

Confidence Interval Command List

k Z
Confidence Interval
Z
1-Sample Interval
Command: OneSampleZInt
Description: This command obtains the confidence interval for the population mean when
the population standard deviation is known.
The confidence interval is obtained using the following expressions.
is the significance level, and 100 (1 – )% is the confidence level. When the
confidence level is 95%, for example, you would input 0.95, which produces
= 1 – 0.95 = 0.05.
Command Syntax
Syntax 1 (list format)
C-Level value,
* "Freq" can be omitted. Doing so sets "1" for "Freq".
Syntax 2 (parameter format)
C-Level value,
Definition of Terms
C-Level : confidence level (0 < C-Level < 1)
:
List :
Freq :
o
:
n
:
Input Example:
Syntax 1 (list format)
OneSampleZInt 0.95,1,list1,1
Syntax 2 (parameter format)
OneSampleZInt 0.95,1,64.3,20
7-10-2
Confidence Intervals
Left = o – Z
2 n
Right = o + Z
2
n
value, List, Freq (or 1)
o
value, value,
population standard deviation ( > 0)
list where sample data is located
frequency of sample (1 or list name)
mean of sample data
sample size (positive integer)
20050501
n
value