Phy 202
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 a list of 10 times in one column, displaying the total elapsed time when the button was clicked. The second column displays the incremental time since the button was last clicked.
** #$&*Your TIMER data from 20 fast clicks **
1 280.994200000001 280.994200000001
2 281.146200000003 .152000000001863
3 281.298199999997 .151999999994587
4 281.458200000001 .160000000003492
5 281.610200000003 .152000000001863
6 281.754200000003 .144000000000233
7 281.906199999998 .151999999994587
8 282.051200000002 .145000000004075
9 282.2212 .169999999998254
10 282.377200000003 .156000000002678
11 282.533199999998 .155999999995402
12 282.673600000002 .140400000003865
13 282.829599999997 .155999999995402
14 282.970000000001 .140400000003865
15 283.125999999997 .155999999995402
16 283.281999999999 .156000000002678
17 283.422400000003 .140400000003865
18 283.578399999999 .155999999995402
19 283.734400000001 .156000000002678
20 283.874799999998 .140399999996589
21 284.0308 .156000000002678
** #$&*Your average time interval for 20 time intervals **
0.15183
I copied the intervals into Excel and used the =AVERAGE() function to calculate the average.
** #$&*Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.1404, 4
.1440, 1
.1450, 1
.1520, 4
.1560, 8
.1600, 1
.1700, 1
** #$&*Your general comment to this point **
I have no questions at this point.
** #$&*Why did you observe only certain time intervals? **
The TIMER program reported that time so frequently because you in fact did get a time of .1875 on over half of the intervals; however, it was not a conscious effort, but chance.
** #$&*What did you see when you looked at the differences between time successive time intervals? **
The difference from one interval to the next appears to be the same number (+/- 0.015625) or a multiple of it (2 * 0.015625 = 0.03125)
** #$&*Your time intervals for 7 complete breaths: **
4.9452
5.5692
6.6924
5.8500
5.9592
6.0528
7.8000
6.7860
7.4880
6.6924
8.4864
** #$&*Your general comment to this point: **
No comments so far.
** #$&*Why did you rarely, if ever, observe that same time interval twice? **
There was much more total time for each breath, so the probability that we would get the same interval decreased exponentially.
** #$&*Do you think this program is accurate to .1 or .01 ... **
d. The TIMER program is capable of determining the time between two events accurately to within about .0001 second.
My reasoning is that the differences in the intervals appear to be able to be calculated out to 4 decimals.
** #$&*Copy of a few lines of your spreadsheet from the TIMER program. **
1 1052.96 1052.96
2 1057.905 4.9452
3 1063.474 5.5692
4 1070.166 6.6924
5 1076.016 5.8500
6 1081.976 5.9592
7 1088.028 6.0528
8 1095.828 7.8000
9 1102.614 6.7860
10 1110.102 7.4880
11 1116.795 6.6924
12 1125.281 8.4864
** **
About 30 minutes after installing the program.
** **
&#Very good work. Let me know if you have questions. &#