Test On A Mean; Μ With Σ 2 Known (Z-Tests) - Casio fx-3650P Programming Manual
Programmable scientific calculator
Hide thumbs
Also See for fx-3650P:
- User manual (61 pages) ,
- Product catalogue (16 pages) ,
- Specifications (1 page)
Table of Contents
Advertisement
28
Test on a mean
The hypothesis of interest is that the mean is equal to a given value
alternative that it is not equal to
µ
x
–
Z
=
----------- -
σ
------ -
n
x
where
is the sample mean and
for the significance level
For different significance levels, the confidence limits
are given below:
ON
MODE
MODE
？→ Ａ：？→ Ｂ： （
INPUT
Ａ: given value
OUTPUT
Ｃ: value of Z
µ
H
Test
:
=1.2
0
0
Data: 1.4, 1.5, 1.3, 1.4, 1.7, 1.5, 1.3 Population variance
µ
. We calculate the test statistics
0
n
is the sample size. If
α
=
0.05
.
Confidence limits
1.64
1.96
2.57
PRGM
MODE
x
－ Ａ）÷√（Ｂ ÷
x
:
SHIFT
µ
Ｂ:population variance
0
µ
≠
H
1.2
：
1
0
σ
µ
with
≥
Z
1
MODE
MODE
n
）→ Ｃ：Ｃ ＜ 24 STEP ＞
x
2
1
σ
σ
2
known
(z-tests)
µ
, versus the
0
1.96
, we reject the hypothesis
0
-1.96
5,
1
1
S-SUM
n
:
SHIFT
2
2
=0.02
1.96
n
`
1
3
39
Hide quick links:
Advertisement
Table of Contents
