Phy 231
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 **
It's 10 sets of 2 numbers each taken out to 3-5 decimal digits
** Your TIMER data from 20 fast clicks **
1 182.6406 182.6406
2 182.8125 .171875
3 182.9688 .15625
4 183.1406 .171875
5 183.3125 .171875
6 183.4219 .109375
7 183.5938 .171875
8 183.7188 .125
9 183.8906 .171875
10 184.0469 .15625
11 184.1875 .140625
12 184.3438 .15625
13 184.5156 .171875
14 184.6719 .15625
15 184.7969 .125
16 184.9375 .140625
17 185.0938 .15625
18 185.25 .15625
19 185.375 .125
20 185.4844 .109375
21 185.6719 .1875
** Your average time interval for 20 time intervals **
0.1515625
I added the first 20 intervals and divided by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.109375, 2
.125, 3
.140625, 2
.15625, 6
.171875, 6
.1875, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
It probably just estimates to the nearest pre-programmed value. That doesn't make it useless since we still know relatively what times we've gotten. It might be a problem in certain instances that require minute time accuracies, but this isn't one of them.
** What did you see when you looked at the differences between time successive time intervals? **
It doesn't necessarily keep increasing or decreasing. The numbers get smaller and larger, making their differences both positive and negative. Also, often, it decreases and increases by the same/similar amount, which reinforces the idea of a preprogrammed tick or counter.
** Your time intervals for 7 complete breaths: **
2.3125
2.859375
3.5
2.8125
3.046875
3.03125
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
I guess the timer program only rounds or estimates to those preprogrammed numbers when the time inbetween clicks is so miniscule that every number gets approximated (since the timer program can't measure incredibly small time differences accurately).
** Do you think this program is accurate to .1 or .01 ... **
It looks like it's accurate to about .0001 since it rounds after .0001 on the fifth decimal spot.
** Copy of a few lines of your spreadsheet from the TIMER program. **
1 , 2248.109 , 2248.109
2 , 2248.281 , 0.171875
3 , 2248.469 , 0.1875
4 , 2248.719 , 0.25
5 , 2248.969 , 0.25
6 , 2249.141 , 0.171875
7 , 2249.297 , 0.15625
8 , 2249.469 , 0.171875
9 , 2249.563 , 0.09375
10 , 2249.734 , 0.171875
11 , 2249.906 , 0.171875
** **
30 minutes
** **
&#This looks very good. Let me know if you have any questions. &#