Comparing Test Results Using Box Plots; 17-2 Applications - Texas Instruments TI-82 STATS Manual Book

Comparing Test Results Using Box Plots

Problem
Procedure
17–2 Applications
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.
Women
Left
8
9
12
11
10
8
12
7
9
11
1. Press ...
to select
5
,
WLEFT WRGHT
commas. Press Í. The stat list editor now contains only
these four lists.
2. Press ...
to select
1
3. Enter into
WLEFT
made using her left hand (
and enter the number of correct guesses each woman
WRGHT
made using her right hand (
4. Likewise, enter each man's correct guesses in
and
Left)
MRGHT
5. Press y [
STAT PLOT
as a modified box plot
to the top line and select
modified box plot that uses
Correct Guesses
Women Men
Right Left
4
1
8
12
11
11
13
12
11
12
5:SetUpEditor
, , and
MLEFT MRGHT
.
1:Edit
the number of correct guesses each woman
Women Left
Women Right
( ).
Men Right
]. Select
1:Plot1
Õ Õ
Õ Õ
that uses
WLEFT
. Turn on plot 2; define it as a
Plot2
.
WRGHT
Men
Right
7 12
8 6
7 12
5 12
7 7
8 11
11 12
4 8
10 12
14 11
13 9
5 9
. Enter list names
, separated by
). Press ~ to move to
).
(
Men
MLEFT
. Turn on plot 1; define it
. Move the cursor