Casio FX-9750G Manual - Página 6

Procurar online ou descarregar pdf Manual para Calculadora Casio FX-9750G. Casio FX-9750G 19 páginas. 3. solve, differential/quadratic differential, integration, maximum/minimum value, and calculations
Também para Casio FX-9750G: Manual do utilizador (18 páginas), Apêndice (10 páginas), Manual (12 páginas), Manual (13 páginas), Manual (10 páginas), Manual (16 páginas), Manual (12 páginas), Utilização do manual (12 páginas), Manual (11 páginas), Manual (14 páginas), Manual (9 páginas), Apêndice (18 páginas), Manual (18 páginas), Manual (17 páginas)

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Casio FX-9750G Manual
Program for
Description
The mean (sample mean) and sample standard deviation can be used to obtain a
(x – m)
t =
x
Example
To determine whether the population standard deviation for sample data 55, 54, 51,
55, 53, 53, 54, 52, is 53.
Perform a
Preparation and operation
• Store the program written on the next page.
• Execute the program as shown below.
Step Key operation
The above operation produces a t-test value of t(53) = 0.7533708035. According to the t-distribution
table in the next page, a level of significance of 5% and a degree of freedom of 7 (
produce a two-sided t-test value of approximately 2.365. Since the calculated t-test value is lower
than the table value, the hypothesis that population mean
PROGRAM SHEET
t
-Test Value
x
: mean of
x
: sample standard deviation of
n
n–
–1
1
n
: number of data items
n
m
: hypothetical population standard deviation (normally repre-
sented by , but
limitations)
t
-test with a level of significance of 5%.
Display
x
data
x
m
is used here because of variable name
Step Key operation
m
equals 53 is accepted.
No.
3
t
-test value.
data
Display
n
– 1 = 8 – 1 = 7)
380