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 the number of times I have clicked the button on the far left. The second number appears to be the time before clicking the button and the third number is the difference between the two second numbers.
** Your TIMER data from 20 fast clicks **
1 52.875 52.875
2 53.01563 .140625
3 53.125 .109375
4 53.25 .125
5 53.39063 .140625
6 53.51563 .125
7 53.65625 .140625
8 53.76563 .109375
9 53.89063 .125
10 54.01563 .125
11 54.125 .109375
12 54.26563 .140625
13 54.375 .109375
14 54.5 .125
15 54.64063 .140625
16 54.76563 .125
17 54.90625 .140625
18 55.03125 .125
19 55.15625 .125
20 55.29688 .140625
21 55.42188 .125
** Your average time interval for 20 time intervals **
.123744
I added all the intervals up and divided by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.109375, 4
.125, 9
.140625, 7
** Your general comment to this point **
** Why did you observe only certain time intervals? **
The timer rounds the intervals to the nearest set/programmed interval. The timer is not flawed or useless, it just takes the intervals and averages them to certain numbers so that they are all relative to each other.
** What did you see when you looked at the differences between time successive time intervals? **
The numbers include both positive and negative. The timer can calculate both positive and negative rates.
** Your time intervals for 7 complete breaths: **
1 11.6875 11.6875
2 16.34375 4.65625
3 20.51563 4.171875
4 25.28125 4.765625
5 29.39063 4.109375
6 34.09375 4.703125
7 38.54688 4.453125
8 43.14063 4.59375
9 48.29688 5.15625
10 52.64063 4.34375
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
We did not see the same exact time intervals twice because breathing is variable and the time between intervals is longer and therefore the chance that you click at a different time is likely – you have more chances to click at a different time if the interval is longer than if it were smaller.
** Do you think this program is accurate to .1 or .01 ... **
D. The timer can determine the time between two events accurately to about .0001 second because if you manually do the intervals it varies after .0001 digits. The timer rounds after .0001.
** Copy of a few lines of your spreadsheet from the TIMER program. **
series of regular breaths time at beginning on inhalation
event number clock time time interval
1 11.6875 11.6875
2 16.34375 4.65625
3 20.51563 4.171875
4 25.28125 4.765625
** **
30 minutes
** **
&#Very good responses. Let me know if you have questions. &#
start FRS and SND