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 **
I finally got my cds and lab equipment. Yay!
** Describe what you see on your first 10 clicks **
The timer appears to show how long the program has been running in the first column and the time difference between clicks in the second column.
** Your TIMER data from 20 fast clicks **
1 283.3906 283.3906
2 283.6484 .2578125
3 283.875 .2265625
4 284.1094 .234375
5 284.3516 .2421875
6 284.5391 .1875
7 284.7344 .1953125
8 284.9063 .171875
9 285.0859 .1796875
10 285.2734 .1875
11 285.4453 .171875
12 285.6328 .1875
13 285.7813 .1484375
14 286.1563 .375
15 286.3438 .1875
16 286.5156 .171875
17 286.7266 .2109375
18 286.9297 .203125
19 287.1484 .21875
20 287.4844 .3359375
** Your average time interval for 20 time intervals **
0.20469
I took the time difference between the first click and the second last click (4.0938) and divided it by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
0.1484375, 1
0.171875, 3
0.1796875, 1
0.1875, 3
0.1953125, 1
0.203125, 1
0.2109375, 1
0.21875, 2
0.2265625, 1
0.234375, 1
0.2421875, 1
0.2578125, 1
0.3359375, 1
0.375, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
No, it means that rounding happens even with machines.
** What did you see when you looked at the differences between time successive time intervals? **
The timer program only records certain times?
** Your time intervals for 7 complete breaths: **
1 1260.844 1260.844
2 1267.188 6.34375
3 1273.375 6.1875
4 1279.516 6.140625
5 1284.391 4.875
6 1291.313 6.921875
7 1296.555 5.242188
8 1302.047 5.492188
9 1306.602 4.554688
10 1311.758 5.15625
** Your general comment to this point: **
Oh, I get it. I think you are trying to explain that there is greater accuracy when the numbers are larger.
** Why did you rarely, if ever, observe that same time interval twice? **
My breathing isn't consistent and larger intervals reduce rounding issues.
** Do you think this program is accurate to .1 or .01 ... **
Your time interval differences were all to the .01 accuracy, therefore I think the program is accurate to .1 seconds due to rounding of the hundreds decimal place.
** Copy of a few lines of your spreadsheet from the TIMER program. **
1 1260.844 1260.844
2 1267.188 6.34375
3 1273.375 6.1875
The data is in separate columns in Excel, but the columns aren't showing up in this box. Also, in case it matters, I had to choose paste special to get the series of windows.
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20 minutes
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&#Your work looks very good. Let me know if you have any questions. &#