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NJFINSFAN1

NJFINSFAN1

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Okay, I figure all the smart guys and gals are up here. (besides me)

I have a take home stat test (we missed three classes due to weather so this is to make up time) and the last three problems I'm drawing a complete blank. I need to show the work.

So who knows stats??????

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:lol:
Almost 8 years since I've done that stuff. Now it might as well be latin.

Good luck sucker :evil:
 
Greg,
I would suggest making this post Poll format with Finbucks as consolation. Let the one who gets the most correct gets the kitty..:lol:

Sorry, it has been almost 20 years since I did Statistical ANALysis. I hated it then, and I dont remember 93.2% of it (With a margin of error of course)...but it does look like straight forward math. Just percentages...right?

Good luck, and BTW: Does your instructor know you are getting help on this?:evil:

Kenny
 
azfinfanmang said:
Greg,
I would suggest making this post Poll format with Finbucks as consolation. Let the one who gets the most correct gets the kitty..:lol:

Sorry, it has been almost 20 years since I did Statistical ANALysis. I hated it then, and I dont remember 93.2% of it (With a margin of error of course)...but it does look like straight forward math. Just percentages...right?

Good luck, and BTW: Does your instructor know you are getting help on this?:evil:

Kenny
Click to expand...

:lol: No, he is a Colts fan!


I need Clumpy, you can never find a Bills fan when you need one!:fire:

Not a bad idea about the fins bucks!:wink:
 
Okay, Keith is getting married and I'm very happy for him.:bighug:

What do you say we have a math party, someone start by doing the last three problems for me!!!!:(
 
I'd have better luck putting a hit on Tony Saprano then answering those questions!:lol: Sorry I couldn't help. Good luck.
 
Well, I haven't done stats since college probably, but I stayed at a holiday inn last night.

For # 23, with the help of google:

Looking at this page:
http://davidmlane.com/hyperstat/B3641.html

Tells me to the get the Z factor from this page:
http://davidmlane.com/hyperstat/z_table.html

Plugging in the 90% gets me a Z factor of 1.6449.

Then the Omega Mean is calculated as the standard deviation (Omega) divided by the square root of N (total number). That's 39 / SQRT(80) = 4.36

Lower limit = 570 - (1.6449 * 4.36) = 563
Upper limit = 570 + (1.6449 * 4.36) = 577

That's A, right? But I wouldn't trust me...
 
Thanks Hof, I knew a Fin fan would come thru. Those Bill fans, can't trust them.
 
NJFINSFAN1 said:
Thanks Hof, I knew a Fin fan would come thru. Those Bill fans, can't trust them.
Click to expand...

My pleasure. Like I said before, though, it's been a long time and stats was never my speciality. It's been a while for Greek too - what I thought was an omega isn't - I guess that's a delta? :o

I decided to check my work by doing #22 to see if we got the same answer, and we didn't - so take everything else with a grain of salt.

Here's my work for #22: http://www.ruf.rice.edu/~lane/stat_sim/normal_approx_conf/index.html

Z = 2.3263
N = 346
P = 12/346 = .03468
DP = SQRT(P * (1 - P) / N) = .00984

LOWER = P - Z * DP = .0118
UPPER = P + Z * DP = .0576

Now, that answer is B.

However, the article says there's a correction for continuity of .5 / N.

If I do that, I get .0103 < p < .0590 - which is not an answer.

Hope I was of some help - good luck on your test...
 
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