Casio CFX-9850GB PLUS Manual do programa - Página 6

Procurar online ou descarregar pdf Manual do programa para Calculadora Casio CFX-9850GB PLUS. Casio CFX-9850GB PLUS 18 páginas. 4. complex numbers
Também para Casio CFX-9850GB PLUS: Manual do software (20 páginas), Manual do utilizador (18 páginas), Manual de Comunicações (13 páginas), Ler este manual primeiro (13 páginas), Manual do gráfico (8 páginas), Manual do gráfico (12 páginas), Manual do gráfico (12 páginas), Manual de números complexos (6 páginas)

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Casio CFX-9850GB PLUS Manual do programa
Program for
Description
The mean (sample mean) and sample standard deviation can be used to obtain a
value.
(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
416
PROGRAM SHEET
t
-Test Value
x
: mean of
σ
x
: sample standard deviation of
n
–1
n–
1
n
: number of data items
n
m
: hypothetical population standard deviation (normally
represented by µ , but
name limitations)
t
-test with a level of significance of 5%.
Display
x
data
x
m
is used here because of variable
Step Key operation
m
equals 53 is accepted.
No.
3
t
-test
data
Display
n
– 1 = 8 – 1 = 7)