Off-topic Talk Where overpaid, underworked S2000 owners waste the worst part of their days before the drive home. This forum is for general chit chat and discussions not covered by the other off-topic forums.

Does anyone know anything about statistics? ? ? ?

Thread Tools
 
Old Jan 25, 2009 | 08:45 PM
  #1  
SXYS2k's Avatar
Thread Starter
 
Joined: Jan 2009
Posts: 4,804
Likes: 1
From: SoCal
Default Does anyone know anything about statistics? ? ? ?

Im stuck​ on this and its the only one i have left to do but im so ****e​n lost.​.​.​

THIS IS THE QUEST​ION:​


In the study​ of sampl​ing distr​ibuti​on of the sampl​e mean,​ what happe​ns to the possi​ble sampl​e means​ for sampl​es of the same size as the sampl​e size incre​ases?​ Expla​in the relev​ance of this prope​rty in estim​ating​ a popul​ation​ mean by a sampl​e mean.​
Reply
Old Jan 25, 2009 | 08:46 PM
  #2  
espelirS2K's Avatar
Registered User
 
Joined: Mar 2006
Posts: 17,670
Likes: 0
From: Bay Area
Default

2?
Reply
Old Jan 25, 2009 | 08:47 PM
  #3  
SXYS2k's Avatar
Thread Starter
 
Joined: Jan 2009
Posts: 4,804
Likes: 1
From: SoCal
Default

tell me about it. Its a take home test and the book does not even explain it..
Reply
Old Jan 25, 2009 | 08:58 PM
  #4  
SXYS2k's Avatar
Thread Starter
 
Joined: Jan 2009
Posts: 4,804
Likes: 1
From: SoCal
Default

Reply
Old Jan 25, 2009 | 09:30 PM
  #5  
magician's Avatar
Registered User
 
Joined: Jul 2001
Posts: 6,592
Likes: 0
From: Yorba Linda, CA
Default

The mean of the distribution of sample means approaches the population mean and the variance of the distribution of sample means approaches zero.

Duh!

(I'll leave the second part to you.)
Reply
Old Jan 25, 2009 | 09:33 PM
  #6  
SXYS2k's Avatar
Thread Starter
 
Joined: Jan 2009
Posts: 4,804
Likes: 1
From: SoCal
Default

Originally Posted by magician' date='Jan 25 2009, 10:30 PM
The mean of the distribution of sample means approaches the population mean and the variance of the distribution of sample means approaches zero.

Duh!

(I'll leave the second part to you.)
hey thanks.. im still lost but you helped a lil. Its hard taking math in intersession especially if math isnt your thing.
Reply
Old Jan 25, 2009 | 09:50 PM
  #7  
mszalli's Avatar
Registered User
 
Joined: Jan 2008
Posts: 2,941
Likes: 0
From: Disneyland
Default

stat was hard.. i got a B somehow but I have no idea what you wrote and what I learned
Reply
Old Jan 25, 2009 | 09:52 PM
  #8  
SXYS2k's Avatar
Thread Starter
 
Joined: Jan 2009
Posts: 4,804
Likes: 1
From: SoCal
Default

Originally Posted by mszalli' date='Jan 25 2009, 10:50 PM
stat was hard.. i got a B somehow but I have no idea what you wrote and what I learned
haha. it was easy untill i ran into this crap. My teacher gives us take home test's over intersession and this is beating me up. Ive been at it for hours and i cant get this
Reply
Old Jan 25, 2009 | 09:52 PM
  #9  
a_zepeda926's Avatar
Registered User
 
Joined: Aug 2006
Posts: 887
Likes: 0
From: Anaheim, CA
Default

i just finished that class this semester.. with an A!
Reply
Old Jan 25, 2009 | 09:54 PM
  #10  
a_zepeda926's Avatar
Registered User
 
Joined: Aug 2006
Posts: 887
Likes: 0
From: Anaheim, CA
Default

if the sample size is larger, it becomes closer to what mu actually is (the actual mean). we can never know the actual mean of anything, that is just the nature of the world, but by increasing the sample size, we can get the closest estimate for mu (actual mean). hope this helps. haha sorry the the first post.. i just had to brag a little..
Reply



All times are GMT -8. The time now is 01:12 AM.