49
examples
Example
Find point t when the right side probability is 0.05 for a
t
-distribution
with degrees of freedom is 15.
Procedure
1
m
STAT2
2
5
(DIST)
c
(T)
c
(C.D)
3 b.h
w
b
E
jj
w
bf
w
1
(None)
c
4
1
(CALC)
i
ffff
b.i
w
ccc
1
(CALC)
i
ffff
b.hf
w
ccc
1
(CALC)
i
ffff
b.hg
w
ccc
1
(CALC)
i
ffff
b.hfd
w
ccc
1
(CALC)
Result Screen
1.7 <
t
1.7 <
t
< 1.8
1.75 <
t
< 1.80
1.75 <
t
< 1.76
•
•
•
A trial-and-error process is repeated until an appropriate value is found.
Result : t =1.753
