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 **
I see 10 rows for each time I clicked the Click to time event button. In each row is two columns. The first column I think is the time in seconds since the program has been open. The second column seems to be the number in seconds between each click of the button.
** Your TIMER data from 20 fast clicks **
1 2.347656 2.347656
2 2.5 .1523438
3 2.652344 .1523438
4 2.804688 .1523438
5 2.933594 .1289063
6 3.082031 .1484375
7 3.226563 .1445313
8 3.363281 .1367188
9 3.507813 .1445313
10 3.667969 .1601563
11 3.804688 .1367188
12 3.949219 .1445313
13 4.109375 .1601563
14 4.242188 .1328125
15 4.386719 .1445313
16 4.539063 .1523438
17 4.691406 .1523438
18 4.851563 .1601563
19 5.003906 .1523438
20 5.15625 .1523438
** Your average time interval for 20 time intervals **
I found the number by adding up all of the numbers, then dividing by 20. The average turned out to be .241.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
2.347656, 1
.1523438, 7
.1289063, 1
.1484375, 1
.1445313, 4
.1367188, 2
.1601563, 3
.1328125, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
No, your trial could just be an aberration since you only tried it one time. No matter the outcome of your trial, you would have to test the TIMER multiple times before you could prove its worth.
** What did you see when you looked at the differences between time successive time intervals? **
The differences in the time intervals are the same relatively often. They are either 0.01563 or .03125. It shows how accurate the TIMER program is that it can calculate to such a small fraction of a second.
** Your time intervals for 7 complete breaths: **
5.902344
7.605469
7.777344
6.894531
7.609375
7.910156
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
Since the time intervals were much larger, there was less of a chance to repeat the same intervals.
** Do you think this program is accurate to .1 or .01 ... **
B. After this point, the numbers in the thousandth and ten thousandth place seem to repeat themselves.
** Copy of a few lines of your spreadsheet from the TIMER program. **
series of regular breaths time at beginning of inhalation
event number clock time time interval
1 739.8672 739.8672
2 745.7695 5.902344
3 753.375 7.605469
4 761.1523 7.777344
5 768.0469 6.894531
6 775.6563 7.609375
7 783.5664 7.910156
** **
25 minutes
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&#Your work looks good. Let me know if you have any questions. &#