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 two columns of numbers including decimal points.
** Your TIMER data from 20 fast clicks **
1 189.3594 189.3594
2 189.5313 .171875
3 189.7188 .1875
4 189.8906 .171875
5 190.0781 .1875
6 190.25 .171875
7 190.4219 .171875
8 190.6094 .1875
9 190.7813 .171875
10 190.9531 .171875
11 191.1094 .15625
12 191.2813 .171875
13 191.4531 .171875
14 191.625 .171875
15 191.8125 .1875
16 191.9844 .171875
17 192.1563 .171875
18 192.3281 .171875
19 192.5 .171875
20 192.6875 .1875
21 192.8594 .171875
22 193.0156 .15625
23 193.1875 .171875
** Your average time interval for 20 time intervals **
0.175002
I multiplied 14*0.171875
I multiplied 5*.1875
I multiplied 1*.15628
add them together, and divided by 20.
&#If you divide the difference between the 1st and 20th time clock times by the 20 - 1 = 19 time intervals you would get the average time interval, and this will agree with the average you obtained by adding the 19 intervals and dividing by 19.
More generally, if you take the difference between two clock times and the difference between their numberings, i.e., subtract the second-column numbers, subtract the first-column numbers and divide, you will get the average of the time intervals between those clock times. &#
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.171875, 14
.1875, 5
.15625, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
The timer program reported that time so frequently since it has limited accuracy of measurements. No, the program is not flawed it simply has the inability to read beyond some fraction.
** What did you see when you looked at the differences between time successive time intervals? **
The instructors taps on the mouse were very precise. Six out of nine taps were almost identical. However, this accuracy is hard to believe since these results would be difficult to obtain.
** Your time intervals for 7 complete breaths: **
2.734375
4.546875
4.734375
4.15625
4.296875
4.03125
4.265625
4.140625
3.171875
4.203125
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
The timer is able to accurately display the amount of time between breaths since there are longer elapsed intervals between clicks of the mouse.
** Do you think this program is accurate to .1 or .01 ... **
b.
This time interval can be seen in the initial experiment when the amount of time between clicks would differ mainly by the second number after the decimal point.
** Copy of a few lines of your spreadsheet from the TIMER program. **
I tried multiple times, however my computer will not let me save this to a spreadsheet. I get an error code and the program shuts down.
If you copy and paste the TIMER output to a text file, say in Notepad, the resulting file can be opened in a spreadsheet. Depending on your computer it could be either space-delimited or tab-delimited.
** **
35 minutes
** **
&#Your work looks good. See my notes. Let me know if you have any questions. &#