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 **
A table is displayed in which the first column lists the number for the amount of times the click to time event button was pushed, the second column gives the time of the event, and the third column gives the difference between that event and the event prior to it.
** Your TIMER data from 20 fast clicks **
1 253.5859 253.5859
2 253.7734 .1875
3 254.0078 .234375
4 254.1797 .171875
5 254.3438 .1640625
6 254.5156 .171875
7 254.6875 .171875
8 254.8516 .1640625
9 255.0234 .171875
10 255.2109 .1875
11 255.3906 .1796875
12 255.5859 .1953125
13 255.875 .2890625
14 256.0625 .1875
15 256.2266 .1640625
16 256.3828 .15625
17 256.5391 .15625
18 256.7109 .171875
19 256.875 .1640625
20 257.0313 .15625
21 257.1953 .1640625
22 257.3906 .1953125
** Your average time interval for 20 time intervals **
.1722656
I added all of the time intervals and divided by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.1875,3
.1640625,4
.171875,5
.1796875,1
.1953125,1
.2890625,1
.234375,1
.15625,3
** Your general comment to this point **
** Why did you observe only certain time intervals? **
I would assume that the timer program estimates the time to the nearest part of a second instead of reporting the actual real time. The timer program is not flawed and it is not useless because all time intervals are recorded to an estimated part of a second due to the impossibility to record the actual real time to many decimal places.
** What did you see when you looked at the differences between time successive time intervals? **
All of the differences are repeatable at least once. This shows that the timer program demonstrates repeatability and is therefore useful statistically.
** Your time intervals for 7 complete breaths: **
1818.883
4.859375
5.632813
4.664063
3.210938
2.148438
3.570313
4.929688
4.210938
4.117188
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
There is more variance in longer time periods than there are in shorter time periods.
** Do you think this program is accurate to .1 or .01 ... **
c
** Copy of a few lines of your spreadsheet from the TIMER program. **
time of relaxed breaths
event number clock time time interval
1 1818.883 1818.883
2 1823.742 4.859375
3 1829.375 5.632813
4 1834.039 4.664063
5 1837.25 3.210938
6 1839.398 2.148438
7 1842.969 3.570313
8 1847.898 4.929688
9 1852.109 4.210938
10 1856.227 4.117188
** **
50 minutes
** **
&#Very good responses. Let me know if you have questions. &#