[
Sample Data
]
(input either sample data or sample statistics using csv / bsv)
[
Sample Statistics
]
Sample Size
n
=
(>1)
Sample Mean
x̄
=
Sample Variance
s
2
=
[
Confidence Level
]
1 - α
95%
99%
[
Sampling Distribution
]
t-Distribution
Z-Distribution
σ
2
=
<Figure 6.2.9> Data input in 『eStatU』 Estimation for population mean
Execute
[
Confidence Interval
]
=
=
x̄
±
⇔
[
,
]
n =
1
200
1-α =
0.60
0.99
Graph Save
<Figure 6.2.10> Simulation experiment to investigate the size of the confidence interval