17–2 Applications
82501F~1.DOC TI-83 international English Bob Fedorisko Revised: 10/26/05 1:49 PM Printed: 10/27/05 3:04
PM Page 2 of 20
An experiment found a significant difference between boys and
girls pertaining to their ability to identify objects held in their
left hands, which are controlled by the right side of their brains,
versus their right hands, which are controlled by the left side of
their brains. The TI Graphics team conducted a similar test for
adult men and women.
The test involved 30 small objects, which participants were not
allowed to see. First, they held 15 of the objects one by one in
their left hands and guessed what they were. Then they held the
other 15 objects one by one in their right hands and guessed what
they were. Use box plots to compare visually the correct-guess
data from this table.
Correct Guesses
Women
Left
Women
Right
Men
Left
Men
Right
84 712
91 86
12 8 7 12
11 12 5 12
10 11 7 7
811 811
12 13 11 12
712 48
9111012
11 12 14 11
13 9
59
1. Press … 5 to select 5:SetUpEditor. Enter list names
WLEFT, WRGHT, MLEFT, and MRGHT, separated by
commas. Press Í. The stat list editor now contains only
these four lists.
2. Press …
1 to select 1:Edit.
3. Enter into WLEFT the number of correct guesses each woman
made using her left hand (
Women Left). Press ~ to move to
WRGHT and enter the number of correct guesses each woman
made using her right hand (
Women Right).
4. Likewise, enter each man’s correct guesses in
MLEFT (Men
Left)
and MRGHT (Men Right).
5. Press y [
STAT PLOT]. Select 1:Plot1. Turn on plot 1; define it
as a modified box plot
Õ
ÕÕ
Õ that uses WLEFT. Move the cursor
to the top line and select
Plot2. Turn on plot 2; define it as a
modified box plot that uses
WRGHT.
Comparing Test Results Using Box Plots
Problem
Procedure
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