How do I weight these (with the county)?



	      (S)	        			   (T)     	       	
	Per Cap Income					Per Cap Income	   Block Grp#        $
         $               Block Grp#
213412		52,306			14776		106301
229004		38,113			12257		110201
219002		15,268			12749		104201
221201		16,894			28648		213324
221127		16,551			22280		217421
213533		62,092			14040		220227
217561		52,857			10572		220221
219004		15,830			14492		108103
219002		15,268			16803		107101
29005		108,571			23383		213312
213532		54,066			31612		213311
					17867		217242
					27475		213323
					15692		106105
					13357		16302
					21114		217241
					52306		213412






Shelby County per capita income				20856

Ultimately I'd like to run a t-test
I'm trying to prove there are differences between areas that have
Stealth cell towers (S) and those that don't [Typical cell towers(T)].
All data is demographic data:  per capita income, median house price,
race, education (assocites or higher).

Please help...

If additional help is offered I'll split question up into another one
for $ purposes.

---

Clarification of Question by zredjayz-ga on 19 Apr 2003 22:15 PDT

How do I weight these (with the county)? 
 
 
 
       (S)               (T)               
 Per Cap Income     Per Cap Income            
Blk Grp#   $       $     Blk Grp# 
213412  52,306   14776  106301 
229004  38,113   12257  110201 
219002  15,268   12749  104201 
221201  16,894   28648  213324 
221127  16,551   22280  217421 
213533  62,092   14040  220227 
217561  52,857   10572  220221 
219004  15,830   14492  108103 
219002  15,268   16803  107101 
29005  108,571   23383  213312 
213532  54,066   31612  213311 
                 17867  217242 
                 27475  213323 
                 15692  106105 
                 13357  16302 
                 21114  217241 
                 52306  213412 
 
 
 
 
 
 
Shelby County per capita income    20856 
 
Ultimately I'd like to run a t-test 
I'm trying to prove there are differences between areas that have
Stealth cell towers (S) and those that don't [Typical cell towers(T)].
All data is demographic data:  per capita income, median house price,
race, education (assocites or higher).
 
Please help... 
 
If additional help is offered I'll split question up into another one
for $ purposes.

I'm not sure you have to weight them at all.  If all you want to know
is if the means are significantly different between the two groups,
just go straight ahead and do a t-test at whatever level of confidence
you are happy with.

Must say though - stats is not my forte.

(Hmmm where did I see a question like this recently)

xarqi