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 different times.
1 45.49609 45.49609
2 46.21094 .7148438
3 46.92969 .71875
4 47.64453 .7148438
5 48.375 .7304688
6 48.95313 .578125
7 49.51563 .5625
8 49.98047 .4648438
9 50.48438 .5039063
10 50.91016 .4257813
Each is a measure of time of how much time went by since i ran the program.
** Your TIMER data from 20 fast clicks **
1 107.0039 107.0039
2 107.1289 .125
3 107.2656 .1367188
4 107.4063 .140625
5 107.5547 .1484375
6 107.6953 .140625
7 107.8594 .1640625
8 107.9727 .1132813
9 108.1211 .1484375
10 108.25 .1289063
11 108.3867 .1367188
12 108.5273 .140625
13 108.6602 .1328125
14 108.8008 .140625
15 108.9258 .125
16 109.0508 .125
17 109.1914 .140625
18 109.3164 .125
19 109.4414 .125
20 109.5898 .1484375
21 109.7305 .140625
22 109.8672 .1367188
23 109.9922 .125
24 110.1172 .125
25 110.2539 .1367188
** Your average time interval for 20 time intervals **
.130557689
I added up all the 20 intervals and divided by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.125, 5
.1367188, 2
.140625, 5
.1484375, 3
.1640625, 1
.1132813, 1
.1289063, 1
.1328125, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
I think it is very possible to get that interval spaced out and not more than one time or two in a row. It does not mean the timer is flawed.
** What did you see when you looked at the differences between time successive time intervals? **
I see some consistency in those numbers. It tells me the TIMER program is precise.
** Your time intervals for 7 complete breaths: **
4.871094
3.855469
3.792969
3.917969
4.234375
3.691406
4.632813
4.460938
4.222656
3.0625
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
When taking breaths it is not as likely that any two breaths will take the same amount of time. It is much more likely that when just clicking without stopping you could get the same interval.
** Do you think this program is accurate to .1 or .01 ... **
c. The TIMER program is capable of determining the time between two events accurately to within about .001 second.
** Copy of a few lines of your spreadsheet from the TIMER program. **
event number,clock time,time interval
1 , 917.8555 , 917.8555
2 , 922.7266 , 4.871094
3 , 926.582 , 3.855469
4 , 930.375 , 3.792969
5 , 934.293 , 3.917969
6 , 938.5273 , 4.234375
7 , 942.2188 , 3.691406
** **
About 45 minutes.
** **
When I saved the file from the TIMER program it would not open in my spreadsheet program. I got it to open in notepad but nothing else would work.
Good work.
The spreadsheet isn't essential but can be very useful. Send me a copy of the following two lines along with your response:
'When I saved the file from the TIMER program it would not open in my spreadsheet program. I got it to open in notepad but nothing else would work.'
What spreadsheet program are you using?