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 **
I see 3 columns of numbers, the first being the numbers 1-10, the second column has numbers ranging from 35-38, and the third starts with the same number as is in row 1 of column 2, and the rest of the column ranges from .2-.3
** Your TIMER data from 20 fast clicks **
1 340.35 340.35
2 340.526 .1760254
3 340.662 .1359863
4 340.8221 .1601563
5 340.975 .152832
6 341.1271 .1520996
7 341.2711 .144043
8 341.423 .1518555
9 341.559 .1359863
10 341.7111 .1520996
11 341.8551 .144043
12 342.007 .1518555
13 342.1591 .1520996
14 342.3351 .1760254
15 342.4711 .1359863
16 342.6151 .144043
17 342.7592 .144043
18 342.9271 .1679688
19 343.079 .1518555
20 343.2311 .1520996
21 343.3751 .144043
22 343.5431 .1679688
23 343.703 .1599121
24 343.879 .1760254
25 344.0311 .1520996
** Your average time interval for 20 time intervals **
0.151257335
I took the average the old fashioned way and added up 20 numbers, the divided by 20...couldn't remember the easier way
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.1359863, 3
.144043, 5
.1518555, 3
.1520996, 4
.152832, 1
.1601563, 1
.1679688, 1
.1760254, 2
** Your general comment to this point **
** Why did you observe only certain time intervals? **
No, it is neither flawed nor useless, it just estimates the times, based on significant figures.
** What did you see when you looked at the differences between time successive time intervals? **
The negative numbers tell that that particular time was faster tahn the last, while the positive ones show a slower time.
** Your time intervals for 7 complete breaths: **
6.614746
6.208008
7.056152
8.312012
4.879886
5.583984
6.104004
6.711914
6.496094
7.096191
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
Because breathing deeply has a great deal more variability than clicking very fast on a mouse, repeatability becomes much more difficult.
** Do you think this program is accurate to .1 or .01 ... **
c
up to this point, the numbers could be the same, but after this point, they are likely to be different.
** Copy of a few lines of your spreadsheet from the TIMER program. **
breaths timed at inhalation
event number clock time time interval
1 2214.633 2214.633
2 2221.248 6.614746
3 2227.456 6.208008
4 2234.512 7.056152
** **
About 40 minutes
** **
&#Your work looks good. Let me know if you have any questions. &#