timer program

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 **

I see 3 columns of numbers. The first columns appears to be to be the sequence in which I clicked the button. The second column appears to be to total duration of the elapsed time, and the third column of numbers looks to be the time interval in between clicks.

** #$&*Your TIMER data from 20 fast clicks **

1 341.2969 341.2969

2 341.4219 .125

3 341.5313 .109375

4 341.6563 .125

5 341.7656 .109375

6 341.875 .109375

7 341.9844 .109375

8 342.1094 .125

9 342.2344 .125

10 342.3594 .125

11 342.4688 .109375

12 342.6094 .140625

13 342.7188 .109375

14 342.8438 .125

15 342.9688 .125

16 343.0938 .125

17 343.2188 .125

18 343.3438 .125

19 343.4688 .125

20 343.5938 .125

** #$&*Your average time interval for 20 time intervals **

.120888

I simply added up all the numbers in that third column and the divided it by 19, not twenty. I divided by 19 because that number in the third column on that first click does not represent a time interval.

** #$&*Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **

.109375, 6

.125, 12

.140625, 1

** #$&*Your general comment to this point **

** #$&*Why did you observe only certain time intervals? **

No. The timer program is not flawed or useless. However, it does seem to round numbers off to a certain significant figure. The actual time interval between each of our clicks could be some number like 0.1256167230194631297404882175.... etc. So the TIMER program simply rounds that nubmer down to .125.

** #$&*What did you see when you looked at the differences between time successive time intervals? **

The TIMER program appears to have set intervals programed into it, where if you click the mouse near those time intervals, the program will round your time to fit into either .01563 or .03125

** #$&*Your time intervals for 7 complete breaths: **

7.59375

10.45313

9.953125

14.4375

19.125

10.4375

15.03125

** #$&*Your general comment to this point: **

** #$&*Why did you rarely, if ever, observe that same time interval twice? **

Because the fast-clicks are going to be within a fairly general time interval. The deep breathing mathematically shouldn't be within a generalized time frame.

** #$&*Do you think this program is accurate to .1 or .01 ... **

C.

** #$&*Copy of a few lines of your spreadsheet from the TIMER program. **

1 628.3281 628.3281

2 635.9219 7.59375

3 646.375 10.45313

4 656.3281 9.953125

5 670.7656 14.4375

6 689.8906 19.125

7 700.3281 10.4375

8 714.3594 14.03125

** **

about 20 minutes

** **

&#This looks good. Let me know if you have any questions. &#