C= x – Casio fx-9750G PLUS User Manual
Page 313
285
u
u
u
u
u
2-Sample t Test
2-Sample
t
Test compares the population means when the population standard
deviations are unknown. The
2-Sample
t
Test is applied to
t
-distribution.
The following applies when pooling is in effect.
t
=
o
1
– o
2
n
1
1 +
n
2
1
x
p
n
–1
2
σ
x
p n
–1
=
σ
n
1
+ n
2
– 2
(n
1
–1)x
1 n–12
+(n
2
–1)x
2 n–12
σ
σ
df
=
n
1
+
n
2
– 2
The following applies when pooling is not in effect.
t
=
o
1
– o
2
x
1 n–1
2
σ
n
1
+
x
2 n–1
2
σ
n
2
df
=
1
C
2
n
1
–1
+
(1–C )
2
n
2
–1
C
=
x
1 n–1
2
σ
n
1
+
x
2 n–1
2
σ
n
2
x
1 n–1
2
σ
n
1
Perform the following key operations from the statistical data list.
3
(TEST)
2
(
t
)
2
(2-S)
Tests
18 - 6
o
1
: sample 1 mean
o
2
: sample 2 mean
x
1
σ
n
-1
: sample 1 standard
deviation
x
2
σ
n
-1
: sample 2 standard
deviation
n
1
: sample 1 size
n
2
: sample 2 size
x
p
σ
n
-1
: pooled sample standard
deviation
df
: degrees of freedom
o
1
: sample 1 mean
o
2
: sample 2 mean
x
1
σ
n
-1
: sample 1 standard
deviation
x
2
σ
n
-1
: sample 2 standard
deviation
n
1
: sample 1 size
n
2
: sample 2 size
df
: degrees of freedom
- CFX-9850G PLUS CFX-9850GB PLUS CFX-9850GC PLUS CFX-9950GB PLUS CFX-9970G Numerical Calculations CFX-9970G Basic Operation CFX-9970G Complex Numbers CFX-9970G Equation Calculations CFX-9970G Graph Solve CFX-9970G Matrix Calculations CFX-9970G Sketch Function CFX-9970G Graph-to-Table CFX-9970G Graphing CFX-9970G Dual Graph CFX-9850GB CFX-9970G Implicit Function Graphs CFX-9970G Dynamic Graph CFX-9970G Table & Graph CFX-9970G Recursion Table and Graph CFX-9970G List Function CFX-9970G Financial Calculations CFX-9970G Data Communications CFX-9970G Program Library CFX-9970G Programming CFX-9970G Statistical Graphs and Calculations CFX-9850G PLUS Getting Acquainted CFX-9850GB PLUS Getting Acquainted CFX-9850GC PLUS Getting Acquainted CFX-9950GB PLUS Getting Acquainted fx-9750G PLUS Getting Acquainted CFX-9850G PLUS Basic Operation CFX-9850GB PLUS Basic Operation CFX-9850GC PLUS Basic Operation CFX-9950GB PLUS Basic Operation fx-9750G PLUS Basic Operation CFX-9850G PLUS Manual Calculations CFX-9850GB PLUS Manual Calculations CFX-9850GC PLUS Manual Calculations CFX-9950GB PLUS Manual Calculations fx-9750G PLUS Manual Calculations CFX-9850G PLUS Complex Numbers CFX-9850GB PLUS Complex Numbers CFX-9850GC PLUS Complex Numbers CFX-9950GB PLUS Complex Numbers fx-9750G PLUS Complex Numbers CFX-9850G PLUS Numerical Calculations CFX-9850GB PLUS Numerical Calculations CFX-9850GC PLUS Numerical Calculations CFX-9950GB PLUS Numerical Calculations fx-9750G PLUS Numerical Calculations CFX-9850G PLUS Binary, Octal, Decimal, and Hexadecimal Calculations CFX-9850GB PLUS Binary, Octal, Decimal, and Hexadecimal Calculations CFX-9850GC PLUS Binary, Octal, Decimal, and Hexadecimal Calculations CFX-9950GB PLUS Binary, Octal, Decimal, and Hexadecimal Calculations fx-9750G PLUS Binary, Octal, Decimal, and Hexadecimal Calculations CFX-9850G PLUS Equation Calculations CFX-9850GB PLUS Equation Calculations CFX-9850GC PLUS Equation Calculations CFX-9950GB PLUS Equation Calculations fx-9750G PLUS Equation Calculations CFX-9850G PLUS Matrix Calculations CFX-9850GB PLUS Matrix Calculations CFX-9850GC PLUS Matrix Calculations CFX-9950GB PLUS Matrix Calculations fx-9750G PLUS Matrix Calculations CFX-9850G PLUS Graph Solve CFX-9850GB PLUS Graph Solve CFX-9850GC PLUS Graph Solve CFX-9950GB PLUS Graph Solve fx-9750G PLUS Graph Solve CFX-9850G PLUS Graphing CFX-9850GB PLUS Graphing CFX-9850GC PLUS Graphing CFX-9950GB PLUS Graphing fx-9750G PLUS Graphing CFX-9850G PLUS Appendix CFX-9850GB PLUS Appendix CFX-9850GC PLUS Appendix CFX-9950GB PLUS Appendix fx-9750G PLUS Appendix CFX-9850G PLUS Graph-to-Table CFX-9850GB PLUS Graph-to-Table CFX-9850GC PLUS Graph-to-Table CFX-9950GB PLUS Graph-to-Table fx-9750G PLUS Graph-to-Table CFX-9850G PLUS Sketch Function CFX-9850GB PLUS Sketch Function CFX-9850GC PLUS Sketch Function CFX-9950GB PLUS Sketch Function fx-9750G PLUS Sketch Function CFX-9850G PLUS Dynamic Graph CFX-9850GB PLUS Dynamic Graph CFX-9850GC PLUS Dynamic Graph CFX-9950GB PLUS Dynamic Graph fx-9750G PLUS Dynamic Graph CFX-9850G PLUS Table & Graph CFX-9850GB PLUS Table & Graph CFX-9850GC PLUS Table & Graph CFX-9950GB PLUS Table & Graph fx-9750G PLUS Table & Graph CFX-9850G PLUS Implicit Function Graphs CFX-9850GB PLUS Implicit Function Graphs CFX-9850GC PLUS Implicit Function Graphs CFX-9950GB PLUS Implicit Function Graphs fx-9750G PLUS Implicit Function Graphs CFX-9850G PLUS Recursion Table and Graph CFX-9850GB PLUS Recursion Table and Graph CFX-9850GC PLUS Recursion Table and Graph CFX-9950GB PLUS Recursion Table and Graph fx-9750G PLUS Recursion Table and Graph CFX-9850G PLUS List Function CFX-9850GB PLUS List Function CFX-9850GC PLUS List Function CFX-9950GB PLUS List Function fx-9750G PLUS List Function CFX-9850G PLUS Financial Calculations CFX-9850GB PLUS Financial Calculations CFX-9850GC PLUS Financial Calculations CFX-9950GB PLUS Financial Calculations fx-9750G PLUS Financial Calculations CFX-9850G PLUS Data Communications CFX-9850GB PLUS Data Communications CFX-9850GC PLUS Data Communications CFX-9950GB PLUS Data Communications fx-9750G PLUS Data Communications CFX-9850G PLUS Programming CFX-9850GB PLUS Programming CFX-9850GC PLUS Programming CFX-9950GB PLUS Programming fx-9750G PLUS Programming CFX-9850G PLUS Program Library CFX-9850GB PLUS Program Library CFX-9850GC PLUS Program Library CFX-9950GB PLUS Program Library fx-9750G PLUS Program Library CFX-9850G PLUS Statistical Graphs and Calculations CFX-9850GB PLUS Statistical Graphs and Calculations CFX-9850GC PLUS Statistical Graphs and Calculations CFX-9950GB PLUS Statistical Graphs and Calculations fx-9750G PLUS Statistical Graphs and Calculations fx-9750G Graph Solve fx-9750G Dual Graph fx-9750G Graph-to-Table fx-9750G Data Communications fx-7400G PLUS Data Communications fx-9750G Program Library fx-7400G Program Library fx-7400G PLUS Program Library fx-9750G Financial Calculations fx-7400G Programming fx-7400G PLUS Programming