Phy 201
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 **
After clicking the button 10 times you see 10 times that go along with the 10 button clicks.
** Your TIMER data from 20 fast clicks **
1 282.4219 282.4219
2 282.5781 .15625
3 282.75 .171875
4 282.9219 .171875
5 283.0781 .15625
6 283.2656 .1875
7 283.4219 .15625
8 283.6094 .1875
9 283.7656 .15625
10 283.9219 .15625
11 284.0938 .171875
12 284.25 .15625
13 284.4219 .171875
14 284.5781 .15625
15 284.7344 .15625
16 284.9063 .171875
17 285.0625 .15625
18 285.2344 .171875
19 285.3906 .15625
20 285.5625 .171875
** Your average time interval for 20 time intervals **
14.245314
I added the values and then divided by 20 to get the average.
Your quick-click intervals were all less than .2 second. Their average cannot be 14 seconds.
282 seconds does not correspond to a quick-click interval.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.4219, 1
.15625, 10
.172875, 7
.1875, 2
** Your general comment to this point **
** Why did you observe only certain time intervals? **
It doesn't mean that the timer program is flawed. It could be this accurate. Computer programs sometimes have little to no error.
** What did you see when you looked at the differences between time successive time intervals? **
I see negative times. You can't have a negative time therefore I think the timer program may be wrong.
** Your time intervals for 7 complete breaths: **
5.125
4.859375
4.640625
4.796875
6
5.453125
5.53125
5.296875
4.828125
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
With fast clicks you clicked at approximately the same speed but when you breath more time elapses between each breath.
** Do you think this program is accurate to .1 or .01 ... **
A.
I chose this answer because when going any further than that you are giving the timer an area of error.
** Copy of a few lines of your spreadsheet from the TIMER program. **
event number clock time time interval
1 1155 1155
2 1160.125 5.125
3 1164.984 4.859375
4 1169.625 4.640625
** **
15 minutes
** **
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