Casio ALGEBRA FX2.0 Advanced Statistics Examples 3 - Manual (Page 10)

49
examples
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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 Ejjw
bf w
1 (None) c
4 1 (CALC)
i
ffffb.iw
ccc
1
(CALC)
i
ffffb.hfw
ccc
1
(CALC)
i
ffffb.hgw
ccc
1
(CALC)
i
ffffb.hfdw
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