Your 'timer program' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Your General Comment **
** Describe what you see on your first 10 clicks **
There are two columns.
The first column has times ranging from 15 to 18 seconds. The second column seems to list the time between each click.
** Your TIMER data from 20 fast clicks **
1 136.5938 136.5938
2 136.75 .15625
3 137.0313 .28125
4 137.25 .21875
5 137.4219 .171875
6 137.6875 .265625
7 137.8438 .15625
8 138.0781 .234375
9 138.2031 .125
10 138.3125 .109375
11 138.4688 .15625
12 138.5781 .109375
13 138.7188 .140625
14 138.9844 .265625
15 139.4688 .484375
16 139.7031 .234375
17 139.8438 .140625
18 139.9688 .125
19 140.1094 .140625
20 140.2344 .125
21 140.3906 .15625
** Your average time interval for 20 time intervals **
.18359
I added the numbers in the second column starting with the second click. Then I divided the total by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.109375,2
.125,3
.140625,3
.15625,4
.171875,1
.21875,1
.234375,2
.265625,2
.28125,1
.484375,1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
The timer program probably rounded some numbers that differed minutely into the same number.
It does not mean that the program is useless.
** What did you see when you looked at the differences between time successive time intervals? **
There are only certain intervals that it seemed to calculate.
** Your time intervals for 7 complete breaths: **
5.265625
8.625
7.46875
8.765625
8.6875
7.3125
7.890625
7.609375
7.65625
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
There was much more time between breaths. The difference between clicks would have been much smaller and more likely to be rounded to the same number.
** Do you think this program is accurate to .1 or .01 ... **
d.
Because the difference between time interval and next is displayed to .00001, the last digit would be rounded off and the accuracy would be one less than what the difference displayed.
** Copy of a few lines of your spreadsheet from the TIMER program. **
breaths asst 0
event number clock time time interval
1 1203.453 1203.453
2 1208.719 5.265625
3 1217.344 8.625
4 1224.813 7.46875
** **
40 minutes
** **
Very good. I believe this data will be used again in a subsequent experiment.