Casio ALGEBRA FX2.0 Advanced Statistics Examples 1 - Manual (Page 3)

3
examples
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Example Five new members of a football team are timed for the 100-
meter dash, yielding the following times.
A: 12.5 B: 11.6 C: 10.8 D: 12.8 E: 11.4
The average time of current team members is 11.4 seconds,
with a standard deviation of 1.30. Test the null hypothesis that
the times of the five new members are at the same level as
current team members at the 0.05 level of significance.
Procedure
1 m STAT2
2 bc.f wbb.gwba.iw
bc.i wbb.ew
3 3 (TEST) b (Z) b (1-Smpl)
4 1 (LIST) c
1 (
≠
) c
bb.e w
b.d w
1 (LIST) b wc
1 (1) c
1 (None) c
5 1 (CALC)
6 (DRAW)
Result Screen
Since P = 0.47003508 > 0.05 (level of significance), we can't reject the null hypothesis and
can conclude the times of the five new numbers is at the same level as current team
members.