Statistical Analysis
 

Does anyone have a good background in statistical analysis that would be willing to provide me with some assistance regarding a study that I am trying to complete?

Thanks

Re: Statistical Analysis
 

You need someone with a CONFIDENCE LEVEL of 95% that knows their R value is within 2 STANDARD DEVIATIONS of the MEAN, excluding any EXTREME OUTLIERS https://www.yenko.net/ubbthreads/imag...mlins/grin.gif I loved my stat classes, but other than an occasional linear regression line in excel - don't really use it enough to remember it https://www.yenko.net/ubbthreads/imag...lins/frown.gif

Re: Statistical Analysis
 

http://img.photobucket.com/albums/v6...ters/BJGuy.jpg

Re: Statistical Analysis
 

I see rick has 'regressed' a bit himself https://www.yenko.net/ubbthreads/imag...ns/naughty.gif

Re: Statistical Analysis
 

what do you need to know? I might be of service to you.

Re: Statistical Analysis
 

Are you referring to SPC analysis...stuff like that? I had to set up the complete program at the printed circuit board facility where I was employed at so that we could get everything 'in control' so our scrap rate would drop.

We had to have a first pass rate of 99% (1% or less scrap rate) so that big vendors like Motorola/Xerox/Cisco Systems/Evans and Sutherland would buy from us...we also had to be ISO9002 certified...but that's a whole 'nother story... https://www.yenko.net/ubbthreads/imag...ins/tongue.gif

Re: Statistical Analysis
 

I developed regression models to predict vehicle speeds and crashes at roundabouts. The models are continuous functions. I am required to introduce limits to the models so that the models do not violate mathematical laws when the independent variable(s) approach zero and infinity. I have to figure out how to limit the range of the independent variable(s) when formulating the regression models.

Re: Statistical Analysis
 

Sproing, I love it! https://www.yenko.net/ubbthreads/imag...mlins/grin.gif

Re: Statistical Analysis
 

https://www.yenko.net/ubbthreads/imag...s/confused.gif https://www.yenko.net/ubbthreads/imag...lins/dunno.gif https://www.yenko.net/ubbthreads/imag...mlins/hmmm.gif

http://www.alternet.org/images/manag...h-confused.jpg

Re: Statistical Analysis
 

OK, you guys are gettin scary. I mean, Just because it's your Birthday............ https://www.yenko.net/ubbthreads/imag...lins/crazy.gif

Re: Statistical Analysis
 

You guys need to lay off the MUSHROOM TEA! LOL
https://www.yenko.net/ubbthreads/imag...mlins/grin.gif
Bobby

Re: Statistical Analysis
 

I'm familiar with SPC (statistical process analysis, or Control, as it is called)

Verne

Re: Statistical Analysis
 

Bruce & Verne,

Unfortunately, I am not a statistics guy. Will SPC perform the analysis as described above?

Thanks

Re: Statistical Analysis
 

Statistical process control is used to get processes that are out of control...into control...by using graphs over a period of time to show what's actually occuring in the the process...meaning that you can predict the outcome before it happens...i.e. when a plating bath is going to go south...so you refresh the chemicals before the bath no longer functions correctly...and you save yourself from having any scrap material...

Make sense?

Aw heck...read this... Click here!!

Re: Statistical Analysis
 

I think it may have to do with the circumference of the main shaft possibly. https://www.yenko.net/ubbthreads/imag...mlins/hmmm.gif

Re: Statistical Analysis
 

"roundabouts"??? You must be from overseas. Here in Jiosey, they're just called circles, and most of them have been eliminated because nobody understands the basic rule: Once you're on the circle, you have the right-away over anyone entering the circle.
I think you have too many uncontrolable variables contributing to the outcome (crashes) to make a sensible statistical probable outcome. You'd have to control the speeds and entrance & exit intervals of the cars at the circle, and that could only be done with stop lights all around and in the circle. So why not just give up and make it a cross intersection with a normal set of lights.?
IF you really want to keep traffic flowing without risk of crashes, get rid of the circle AND the lights and build overpasses and ramps.

I HATE traffic lights................ https://www.yenko.net/ubbthreads/imag...lins/frown.gif

Re: Statistical Analysis
 

I'll consider that thought provoking suggestion. https://www.yenko.net/ubbthreads/imag...ns/scholar.gif

Re: Statistical Analysis
 

Hey Verne...they have roundabouts here in AZ, too!

Just go through them like this https://www.yenko.net/ubbthreads/imag...ins/3gears.gif

Works every time!

Re: Statistical Analysis
 

[ QUOTE ]
Hey Verne...they have roundabouts here in AZ, too!

Just go through them like this https://www.yenko.net/ubbthreads/imag...ins/3gears.gif

Works every time!

[/ QUOTE ]
Utah has one...coming back from src9 in the motorhome its the first time i've ever been in one had to have the wife tell what to do hmmmmmmmmmmmm come to think of it she is always tellin me what to do https://www.yenko.net/ubbthreads/imag...emlins/mad.gif lol

Re: Statistical Analysis
 

[ QUOTE ]
[ QUOTE ]
Hey Verne...they have roundabouts here in AZ, too!

Just go through them like this https://www.yenko.net/ubbthreads/imag...ins/3gears.gif

Works every time!

[/ QUOTE ]
Utah has one...coming back from src9 in the motorhome its the first time i've ever been in one had to have the wife tell what to do hmmmmmmmmmmmm come to think of it she is always tellin me what to do https://www.yenko.net/ubbthreads/imag...emlins/mad.gif lol

[/ QUOTE ]

https://www.yenko.net/ubbthreads/imag...emlins/eek.gif https://www.yenko.net/ubbthreads/imag...lins/blush.gif https://www.yenko.net/ubbthreads/imag...mlins/haha.gif https://www.yenko.net/ubbthreads/imag...mlins/haha.gif https://www.yenko.net/ubbthreads/imag...mlins/haha.gif

Re: Statistical Analysis
 

Got em' here too, always fun to watch a sleeper cab Freightliner hooked to a 53' trailer "staighten out" the circles. Nice explanation Bruce, now I know what I slept through in college.

Re: Statistical Analysis
 

"Look kids, Big Ben."

Clark 'Sparky' Griswold

Re: Statistical Analysis
 

Actually, I believe it's "Look kids, Big Ben, Parliament..." And then something like "I can't seem to get left!" https://www.yenko.net/ubbthreads/imag...iggthumpup.gif

I've used that first line so many times, that when we were on vacation this summer, while on a Duck tour of Branson my wife told her friend to wait for the phrase...and sure enough!

Re: Statistical Analysis
 

God I love this site! I'm laughin' my arse off re-reading this whole fiasco! We take a somewhat serious question and completely destroy the initial topic!

Life is good! https://www.yenko.net/ubbthreads/imag...mlins/grin.gif

https://www.yenko.net/ubbthreads/imag...iggthumpup.gif https://www.yenko.net/ubbthreads/imag...iggthumpup.gif https://www.yenko.net/ubbthreads/imag...iggthumpup.gif

Re: Statistical Analysis
 

Another of my favorites...

"Russ??!!"

"Oink Oink my good man!" https://www.yenko.net/ubbthreads/imag...ns/naughty.gif

Re: Statistical Analysis
 

"Zippi dee do dah" https://www.yenko.net/ubbthreads/imag...mlins/grin.gif

Re: Statistical Analysis
 

We ain't got none of those roundybouts here in Donahue. Sounds like some sissy liberal commie pinko idea to keep us distracted.Now we do get some folks who try to do the speed , crash, infinity thing. Then we go out in them big red trucks with the flashin lights, and scrape em up, and send em off to folks like Tom. Don't know than they found infinity, but they sure enough found eternity. https://www.yenko.net/ubbthreads/imag...lins/crazy.gif

By the way Mike, what kind of plasma cutter did you buy?

Re: Statistical Analysis
 

WTF??? https://www.yenko.net/ubbthreads/imag...s/confused.gif

I don't belong here......

Re: Statistical Analysis
 

Schony, you win.

Re: Statistical Analysis
 

[ QUOTE ]
Schony, you win.

[/ QUOTE ]

I surrender...you guys are great! https://www.yenko.net/ubbthreads/imag...lins/smile.gif

I bought a Thermodynamic Drag-gun

Re: Statistical Analysis
 

I'll pull my stat book out this weekend Mike. The issue is how to introduce limits to the equation without ruining the model, therefore keeping it 'predictable'. SPC is not 'truly' statistical, but.... eh, close enough.

Re: Statistical Analysis
 

Marlin,

Don’t worry about I will work it out…..hopefully! https://www.yenko.net/ubbthreads/imag...lins/smile.gif

Re: Statistical Analysis
 

Hey I tried.... https://www.yenko.net/ubbthreads/imag...lins/dunno.gif https://www.yenko.net/ubbthreads/imag...mlins/grin.gif

Re: Statistical Analysis
 

I think there is an adequate supply of 'crash test dummies' right here https://www.yenko.net/ubbthreads/imag...ns/naughty.gif

Re: Statistical Analysis
 

That was a one hit wonder group... Crash Test Dummies

Mmmm Mmmm Mmmm Mmmm.... https://www.yenko.net/ubbthreads/imag...ins/tongue.gif