Casio ClassPad 300 User Manual page 375

Input Example:
Syntax 1 (list format)
TwoSampleZInt 0.95,1,1.5,list1,list2,1,1
Syntax 2 (parameter format)
TwoSampleZInt 0.95,1,1.5,418,40,402,50
Calculation Result Output
Left : interval lower limit (left edge)
Right : interval upper limit (right edge)
o
: mean of sample 1 data
1
o
: mean of sample 2 data
2
x
σ : standard deviation of sample 1 (Displayed only for list format.)
n
1 -1
x
σ : standard deviation of sample 2 (Displayed only for list format.)
n
2 -1
n
: size of sample 1
1
n
: size of sample 2
2
Z
1-Prop Interval
Command: OnePropZInt
Description: This command obtains the confidence interval of the proportion of successes
in a population.
The confidence interval is obtained using the following expressions.
The confidence level is 100 (1 – α )%.
Left =
Right =
Command Syntax
C-Level value,
Definition of Terms
C-Level: confidence level (0 < C-Level < 1)
x
: data (0 or positive integer)
n
: sample size (positive integer)
Input Example:
OnePropZInt 0.95,600,800
Calculation Result Output
Left : interval lower limit (left edge)
Right : interval upper limit (right edge)
ˆ p
: estimated sample proportion
n
: sample size
7-10-4
Confidence Intervals
x – Z α 1 x x
1–
n n n
n
2
1
x α x
1–
+ Z
n n
n
2
x n
value, value
20021201
n
: sample size
x
: data
x
n