Phy202
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 seconds counted I presume? Why does it not start at 0? Does it start running as soon as the program starts?
** #$&*Your TIMER data from 20 fast clicks **
1 257.9648 257.9648
2 258.1328 .1679688
3 258.2773 .1445313
4 258.4043 .1269531
5 258.541 .1367188
6 258.668 .1269531
7 258.9316 .2636719
8 259.0605 .1289063
9 259.1973 .1367188
10 259.3164 .1191406
11 259.4375 .1210938
12 259.5566 .1191406
13 259.6855 .1289063
14 259.8203 .1347656
15 259.9648 .1445313
16 260.0918 .1269531
17 260.2207 .1289063
18 260.3574 .1367188
19 260.4844 .1269531
20 260.5547 .0703125
** #$&*Your average time interval for 20 time intervals **
0.129492205
I use excel.
Excel is not an appropriate way to calculate the average for this question. You need to do the calculation yourself. Excel is fine for analysis of subsequent experiments, once you have already demonstrated that you know how to do a calculation and interpret its meaning.
What would you do to calculate the average time interval?
** #$&*Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
0
0.1679688,1
0.1445313,2
0.1269531,3
0.1367188,3
0.2636719,1
0.1289063,2
0.1191406,2
0.1210938,1
0.1347656,1
0.0703125,1
** #$&*Your general comment to this point **
I don't see how that is possible. Is it that accurate?
I suspect your .26 sec interval corresponds to a missed click.
In any case your tally of the intervals appears correct.
** #$&*Why did you observe only certain time intervals? **
I assume it is rounding. I don't think it is useless as long as it is constant?
** #$&*What did you see when you looked at the differences between time successive time intervals? **
that it is accruate to 6 places.
** #$&*Your time intervals for 7 complete breaths: **
39015.59
4.277344
2.894531
4.96875
4.515625
4.421875
3.992188
4.8125
4.304688
3.902344
** #$&*Your general comment to this point: **
My breathing seems to be steady? I don't know why yours keep increasing. And 20s long, are you in hibernation?
I appear to relax when I take full breaths. There is of course a limit to how long the intervals get.
** #$&*Why did you rarely, if ever, observe that same time interval twice? **
Because it is not a controlled response time, but a timing issue.
** #$&*Do you think this program is accurate to .1 or .01 ... **
The data above seems to suggest .0001. So I will take .0001 for all the money Bob..lol
** #$&*Copy of a few lines of your spreadsheet from the TIMER program. **
Breath
event number,clock time,time interval
1 , 39015.59 , 39015.59
2 , 39019.87 , 4.277344
3 , 39022.77 , 2.894531
4 , 39027.73 , 4.96875
5 , 39032.25 , 4.515625
6 , 39036.67 , 4.421875
7 , 39040.66 , 3.992188
8 , 39045.48 , 4.8125
9 , 39049.78 , 4.304688
10 , 39053.68 , 3.902344
** **
About 30 min
** **
`gr53
Phy202
Your 'timer program' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** #$&* Your General Comment **
** #$&* Describe what you see on your first 10 clicks **
I see seconds counted I presume? Why does it not start at 0? Does it start running as soon as the program starts?
** #$&*Your TIMER data from 20 fast clicks **
1 257.9648 257.9648
2 258.1328 .1679688
3 258.2773 .1445313
4 258.4043 .1269531
5 258.541 .1367188
6 258.668 .1269531
7 258.9316 .2636719
8 259.0605 .1289063
9 259.1973 .1367188
10 259.3164 .1191406
11 259.4375 .1210938
12 259.5566 .1191406
13 259.6855 .1289063
14 259.8203 .1347656
15 259.9648 .1445313
16 260.0918 .1269531
17 260.2207 .1289063
18 260.3574 .1367188
19 260.4844 .1269531
20 260.5547 .0703125
** #$&*Your average time interval for 20 time intervals **
0.129492205
I use excel.
Excel is not an appropriate way to calculate the average for this question. You need to do the calculation yourself. Excel is fine for analysis of subsequent experiments, once you have already demonstrated that you know how to do a calculation and interpret its meaning.
What would you do to calculate the average time interval?
** #$&*Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
0
0.1679688,1
0.1445313,2
0.1269531,3
0.1367188,3
0.2636719,1
0.1289063,2
0.1191406,2
0.1210938,1
0.1347656,1
0.0703125,1
** #$&*Your general comment to this point **
I don't see how that is possible. Is it that accurate?
I suspect your .26 sec interval corresponds to a missed click.
In any case your tally of the intervals appears correct.
** #$&*Why did you observe only certain time intervals? **
I assume it is rounding. I don't think it is useless as long as it is constant?
** #$&*What did you see when you looked at the differences between time successive time intervals? **
that it is accruate to 6 places.
** #$&*Your time intervals for 7 complete breaths: **
39015.59
4.277344
2.894531
4.96875
4.515625
4.421875
3.992188
4.8125
4.304688
3.902344
** #$&*Your general comment to this point: **
My breathing seems to be steady? I don't know why yours keep increasing. And 20s long, are you in hibernation?
I appear to relax when I take full breaths. There is of course a limit to how long the intervals get.
** #$&*Why did you rarely, if ever, observe that same time interval twice? **
Because it is not a controlled response time, but a timing issue.
** #$&*Do you think this program is accurate to .1 or .01 ... **
The data above seems to suggest .0001. So I will take .0001 for all the money Bob..lol
** #$&*Copy of a few lines of your spreadsheet from the TIMER program. **
Breath
event number,clock time,time interval
1 , 39015.59 , 39015.59
2 , 39019.87 , 4.277344
3 , 39022.77 , 2.894531
4 , 39027.73 , 4.96875
5 , 39032.25 , 4.515625
6 , 39036.67 , 4.421875
7 , 39040.66 , 3.992188
8 , 39045.48 , 4.8125
9 , 39049.78 , 4.304688
10 , 39053.68 , 3.902344
** **
About 30 min
** **
&#Good responses. See my notes and let me know if you have questions. &#