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 **
everytime i click the button the numbers get larger
** Your TIMER data from 20 fast clicks **
1 86.39453 86.39453
2 86.57422 .1796875
3 86.73438 .1601563
4 86.97656 .2421875
5 87.15625 .1796875
6 87.32422 .1679688
7 87.48438 .1601563
8 87.67578 .1914063
9 87.84766 .171875
10 88.01563 .1679688
11 88.19531 .1796875
12 88.65625 .4609375
13 88.84766 .1914063
14 89.00781 .1601563
15 89.17969 .171875
16 89.36719 .1875
17 89.55078 .1835938
18 89.70703 .15625
19 89.85938 .1523438
20 90.07813 .21875
21 90.25 .171875
** Your average time interval for 20 time intervals **
92.7000015
i added all the numbers up and divided by 20
Which numbers did you add?
Which numbers in your data correspond to time intervals between quick clicks?
Is it reasonable to conclude that it took an average of 92.7 seconds between quick clicks?
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.21875,1
.1523438,1
.15625,1
.1835938,1
.1875,1
.4609375,1
.1679688,1
.2421875,1
.1796875,2
.1914063,2
.1601563,3
.171875,3
You did use appropriate intervals for this distribution. Note that the average of these intervals is not 92.7 seconds.
When listing a frequency distribution the quantities should be listed in some sort of order, generally least to greatest.
The .46 second interval does not correspond to a quick click. It's pretty clear that this corresponds to a 'missed' click. Since you can take this data quickly and easily, the most efficient way to correct this is to take another data set, and keep trying until you don't miss a click. It shouldn't take more than a minute or two to get a good data set.
** Your general comment to this point **
** Why did you observe only certain time intervals? **
the timer could be set to round after so many number places or there could be a flaw. i am going with the rounding aspect of it.
** What did you see when you looked at the differences between time successive time intervals? **
the timer program will only work in the speeds of .01563,.03125,.015625 meaning that even if you could click fast the program would not reconize it.
** Your time intervals for 7 complete breaths: **
2.765625
3.117188
4.105469
3.703125
4.355469
3.957031
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
there were longer periods of time in between breaths and the program was able to read the clicks more accurately.
** Do you think this program is accurate to .1 or .01 ... **
c i think the timer program can .001 second if you can click slower so it will have more time to read the data.
** Copy of a few lines of your spreadsheet from the TIMER program. **
breath timers
event number,clock time,time interval
1 , 1568.543 , 1568.543
2 , 1571.309 , 2.765625
3 , 1574.426 , 3.117188
4 , 1578.531 , 4.105469
5 , 1582.234 , 3.703125
6 , 1586.59 , 4.355469
** **
45 minutes
** **
Good work overall. However your average time interval was not correct--with a good data set would probably have been somewhere around .17 seconds or so. Be sure you understand how to get the correct average. If you are not sure, submit a copy of this document and insert your revised calculations, questions or comments, and mark insertions with &&&&.
In any case, see my notes and do let me know if you have questions.