Phy 121
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, each with 10 rows. The 1st column is labeled 1 - 10. The other two columns include a lot of numbers.
** Your TIMER data from 20 fast clicks **
1 1.90625 1.90625
2 2.078125 .171875
3 2.21875 .140625
4 2.359375 .140625
5 2.515625 .15625
6 2.65625 .140625
7 2.8125 .15625
8 2.953125 .140625
9 3.109375 .15625
10 3.25 .140625
11 3.398438 .1484375
12 3.554688 .15625
13 3.710938 .15625
14 3.867188 .15625
15 4.039063 .171875
16 4.210938 .171875
17 4.367188 .15625
18 4.539063 .171875
19 4.726563 .1875
20 4.882813 .15625
21 5.070313 .1875
22 5.242188 .171875
** Your average time interval for 20 time intervals **
0.23828125
I simply added the numbers in the third column and divided by 22. It seems the first interval number should not be counted because it seems to count the time from when the application was opened.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.140625, 5
.1484375, 1
.15625, 8
.171875, 5
.1875, 2
1.90625, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
Possibly, the program allows for reaction time???
** What did you see when you looked at the differences between time successive time intervals? **
It seems the timer program can only react at certain intervals, only so quickly.
** Your time intervals for 7 complete breaths: **
4.0625
5.25
6.242188
7.132813
7.90625
6.101563
7.6875
6.226563
7.023438
6.4375
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
The timer program has more time to react and we are not trying to press it repeatedly as fast as we can so our clicks are not nearly as close to being consistent.
** Do you think this program is accurate to .1 or .01 ... **
The TIMER program is capable of determining the time between two events accurately to within about .0001 second. I think this because your data included intervals where the 4th and 5th places after the decimal included 38 and 88 several times. This indicates to me that it rounds to the nearest .0005 between these.
** Copy of a few lines of your spreadsheet from the TIMER program. **
1 4.0625 4.0625
2 9.3125 5.25
3 15.55469 6.242188
4 22.6875 7.132813
5 30.59375 7.90625
6 36.69531 6.101563
7 44.38281 7.6875
8 50.60938 6.226563
9 57.63281 7.023438
10 64.07031 6.4375
** **
30 minutes
** **
&#Your work looks very good. Let me know if you have any questions. &#