Casio CFX-9850GB PLUS Program Manual - Page 6

Browse online or download pdf Program Manual for Calculator Casio CFX-9850GB PLUS. Casio CFX-9850GB PLUS 18 pages. 4. complex numbers
Also for Casio CFX-9850GB PLUS: Software Manual (20 pages), User Manual (18 pages), Communications Manual (13 pages), Read This First Manual (13 pages), Graph Manual (8 pages), Graph Manual (12 pages), Graph Manual (12 pages), Complex Numbers Manual (6 pages)

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Casio CFX-9850GB PLUS Program Manual
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)