34-35 / 1676
34-35 / 1676
What is under the hood of your statistical
software?
•
Compare two normally distributed series with equal
variance:
t
=
x
1
-
x
2
s
1
2
( 1
n
1
+
1
n
2
)
e
=
2[1
-
F
t
(
df
1
+
df
2
)
(
t
)]
Test quantity. Note common variance
Two sided test
Cummulative distribution function.
