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-   -   Some thing to think about (https://classracer.com/classforum/showthread.php?t=46728)

Don Kennedy 04-10-2013 10:35 PM

Some thing to think about
 
Is any one on here a statistician . I would like them to do a bell curve with racers Reaction times and see if any racer is out side of the bell curve > just curious

Greenlight 04-11-2013 01:18 AM

Re: Some thing to think about
 
Don,

If you can supply the data I can do the analysis.

boster 04-11-2013 08:51 AM

Re: Some thing to think about
 
Don , I'm outside the bell curve , on the red side . I thinks it's a great ideal and would love to see it .

Michael Beard 04-11-2013 10:58 AM

Re: Some thing to think about
 
Ricky Baehr and I did our stats on DRR a couple of years ago, and the distribution looked pretty similar if I recall. You could probably do something with 1320go.

http://www.staginglight.com/images/mgb_rt08.jpg

Don Kennedy 04-11-2013 11:58 AM

Re: Some thing to think about
 
I would like to see a comparison of some racers to others and see where they are in the bell curve or out of it. lol

DrJRacing 04-11-2013 01:26 PM

Re: Some thing to think about
 
Everyone falls within the "bell curve" .The bell curve(from my nightmarish memories of statistics in orthodontic grad school) is a result of graphing the distribution of a measurement such as average reaction times of different drivers. A natural distribution of a measurement produces a bell shaped curve when you "connect the dots". I believe the question to ask would be: Where do average reaction times of different drivers fall on such a graph?" In any case, great topic Don!
Dr J

david ring 04-11-2013 02:00 PM

Re: Some thing to think about
 
Perhaps what Don wants to know is what is the average reaction time and what is it's standard deviation. From that of course, don would be able to figure out if he is fast or slow and how far above and below the average he is.

david ring 04-11-2013 02:08 PM

Re: Some thing to think about
 
Quote:

Originally Posted by DrJRacing (Post 377095)
from my nightmarish memories of statistics in orthodontic grad school

That is one of the two reasons why my nickname for statistics is sadistics; the other reason is that statisticians torture the data until it confesses to what they want them to say, or at least that what it sometimes seems like. When I taught econometrics, I used to have my students read an article entitled let's take the Con of of econometrics; I'd also sometimes refer to the course as econometricks.

cicero819 04-11-2013 04:15 PM

Re: Some thing to think about
 
A very simple Bell Curve like what Don is proposing only needs data of RT from participants, lets use Super stock from Vegas, how many 001 to 1.99 just use NHRA data. Claude

Jim Parsons 04-11-2013 07:56 PM

Re: Some thing to think about
 
David, is that where the saying comes from, “the data can’t lie only statisticians”

Nitro Joe Jackson 04-11-2013 09:56 PM

Re: Some thing to think about
 
interesting, lol
;)

Greenlight 04-11-2013 11:57 PM

Re: Some thing to think about
 
Don,

The correct way to do this type of analysis is a statistical method called ANOVA.

I did a sample ANOVA analysis using 10 drivers with each 20 reaction times. I just made up numbers, so it's not real racers.

I can't attach the file (or I'm not quite sure how), because it's a three page .pdf file.

Give me your email address and I'll send it to you. In the file I added a brief explanation of the various statistical terms (standard deviation, median, mean, etc.), but if you are not familiar with this type of analysis you might have to stare at it for a few minutes before you "see the light".

Don Kennedy 04-12-2013 01:09 AM

Re: Some thing to think about
 
donkennedy1@cox.net

By the way this is not about me it is about other racers who are beyond the average or curve lol

E Mail me and i will give you there names , last year and this year averages

Jeff Lee 04-12-2013 07:58 PM

Re: Some thing to think about
 
You have to know what the "99 per centers" have for averages if you want to find where the "1 per centers" are relative to the data.

Dan Fletcher 04-12-2013 09:16 PM

Re: Some thing to think about
 
Great topic Don. You always, have very interesting, insightful posts. Please let everyone know what your analysis reveals.

Don Kennedy 04-12-2013 10:54 PM

Re: Some thing to think about
 
I have not had time to look at some racers I do know My average RT was 0.030 and JImmy D was 0.025 with no red lights last year for Jimmy and I think two red lights this year for Jimmy and I know Jimmy RT are not like they were last year . I am too busy to look at anyone else right now :D

Mark Faul 04-12-2013 11:41 PM

Re: Some thing to think about
 
Quote:

Originally Posted by Dan Fletcher (Post 377254)
Great topic Don. You always, have very interesting, insightful posts. Please let everyone know what your analysis reveals.

Ever feel like you have a bullseye on your back Dan? LOL

Don Kennedy 04-12-2013 11:43 PM

Re: Some thing to think about
 
Quote:

Originally Posted by Mark Faul (Post 377281)
Ever feel like you have a bullseye on your back Dan? LOL

Mark : what makes you think I have a concern about Dan ? Just curious

Mark Faul 04-12-2013 11:57 PM

Re: Some thing to think about
 
Quote:

Originally Posted by Don Kennedy (Post 377282)
Mark : what makes you think I have a concern about Dan ? Just curious

I don't know? Just the great string of lights and I liked the funny comment by Dan.

Don Kennedy 04-13-2013 12:22 AM

Re: Some thing to think about
 
Quote:

Originally Posted by Mark Faul (Post 377283)
I don't know? Just the great string of lights and I liked the funny comment by Dan.

Mark : Now that you brought it up maybe there should be a look at his rt lol,don,t have time my self or even care, why don,t you analize it for you lol

Mark Faul 04-13-2013 12:32 AM

Re: Some thing to think about
 
Quote:

Originally Posted by Don Kennedy (Post 377288)
Mark : Now that you brought it up maybe there should be a look at his rt lol,don,t have time my self or even care, why don,t you analize it for you lol

Maybe it would be better to go back to his race at Milan years ago. .015 .015 .015 .015 .015 and .014. He said he staged .001 deep in the final. Haha. Sometimes the best racers just have days like that!

Greenlight 04-13-2013 02:38 AM

Re: Some thing to think about
 
Don,

I sent you an email with the data. Did you get it?

Don Kennedy 04-13-2013 10:03 AM

Re: Some thing to think about
 
Quote:

Originally Posted by Greenlight (Post 377294)
Don,

I sent you an email with the data. Did you get it?

Yes igot it did not understand a lot but it was interesting and was what I have

Thanks

Tom Nolan 04-15-2013 02:20 PM

Re: Some thing to think about
 
That seems like a lot of work collecting data, how about NHRA simply check our Stock and SS cars for properly wired systems. IE. brake pedal activated 2 steps in stock, any electronic delay or advantage other than the mechanical delay of the approved transbrake switch in SS? Just to be fair for everyone, NHRA can check my cars first! Has anyone had their car checked? Tom Nolan

Mark Yacavone 04-15-2013 02:45 PM

Re: Some thing to think about
 
NHRA supposedly hired an electronic guru years ago...Anybody ever see him?

* I'm just responding to Tom's post . I don't mean to help carry this thread in that direction.

That's not the purpose of this thread..BTW, What IS the purpose of this thread?

ss chief 04-15-2013 03:50 PM

Re: Some thing to think about
 
Narrowing victories down to reaction times is narrow minded. The great racers that consistently win have many things going for them. They are masters of manipulation with the cars they race. They prepare themselves and the car well beyond what people realize. They are not afraid to dial up in almost any situation. They look at a time slip differently than most. And they race more in one year than most of us do in 3 years. Beyond that they are talented individuals that put it all out there to succeed. They are also great stagers. Enough about these guys cheating. If anything, they are very clever when it comes to all phases of racing.

Rod Stults

cicero819 04-15-2013 04:07 PM

Re: Some thing to think about
 
First I have to write a great quote from Henry Ford " It's amazing how lucky I am, told by the competition and funnier the harder I work the luckier I get" I do not think that this thread was pointed at anyone, just Mr. Kennedy wanting to know about one way to calculate RT using the Bell system. Claude Ruel

david ring 04-15-2013 05:49 PM

Re: Some thing to think about
 
Quote:

Originally Posted by Jim Parsons (Post 377128)
David, is that where the saying comes from, “the data can’t lie only statisticians”

It is why scientists always want to see they data to make sure they can replicate results, or to quote Reagan, trust, but verify.

Don Kennedy 04-15-2013 07:06 PM

Re: Some thing to think about
 
Quote:

Originally Posted by david ring (Post 377629)
It is why scientists always want to see they data to make sure they can replicate results, or to quote Reagan, trust, but verify.

Now is the time for NHRA based on The Stats to start looking at the all ignitions systems, ,wide open throttle switch activation and trans brake buttons on Stockers especially( on steering wheels) , cause it is illegal to use (per NHRA) these to cause a delay or a automatically leave ..

By the way I don't think to those who insinuated or implied that I was Concerned about Dan Fletcher I just simply think he is a very good driver and does not need a device to win (FYI) so drop this about Old Dan and I

I do have a concern about other drivers based on The Stats That I have that they are using a illegal way of leaving the starting line .

I do Like the Trust but verify saying by Ronald Reagan

enough of this i am done with this got to work some time lol

Tom Nolan 04-16-2013 06:33 PM

Re: Trust and Verify!
 
I just would like to see cars being checked on a regular basis. Spot pit area check.....a couple of jack stands.....show tech official how things work? No need to accuse anyone of cheating......trust and verify! Isn't that what NHRA does with alcohol and drug testing? If your clean your clean! If you are not well then things need to conform to the rules.

The Hawk 04-16-2013 07:35 PM

Re: Some thing to think about
 
I myself never worry about what everyone else has had for reaction times in the past,I concern myself with each round and if it wins. You could average .005 all year long and never win a round.


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