Is there a difference between the average sale price of "Excellent" vs. "Good" apartment buildings? To answer this question, first we need to generate a new variable that is the sale price divided by the number of apartments in the building (so that we can compare different sizes of apartment buildings). After doing this, conduct a hypothesis test for the average of this variable, allowing for at most a 1% Type I error, and be sure to clearly state your hypotheses, conclusions, and possible error in plain language.

SalePrice	Apartments	Age	LotSize	ParkSpaces	BldArea	Condition	APTSIZE
90300	4	82	4365	0	4266	F	21.16737
384000	20	13	17798	0	14391	G	26.68334
157500	5	66	5913	0	6615	G	23.80952
676200	26	64	7750	6	34144	E	19.80436
165000	5	55	5150	0	6120	G	26.96078
300000	10	65	12506	0	14552	G	20.61572
108750	4	82	7160	0	3040	G	35.77303
276538	11	23	5120	0	7881	G	35.0892
420000	20	18	11745	20	12600	G	33.33333
950000	62	71	21000	3	39448	G	24.08234
560000	26	74	11221	0	30000	G	18.66667
268000	13	56	7818	13	8088	F	33.13551
290000	9	76	4900	0	11315	E	25.6297
173200	6	21	5424	6	4461	G	38.82538
323650	11	24	11834	8	9000	G	35.96111
162500	5	19	5246	5	3828	G	42.45037
353500	20	62	11223	2	13680	F	25.84064
134400	4	70	5834	0	4680	E	28.71795
187000	8	19	9075	0	7392	G	25.29762
155700	4	57	5280	0	6030	E	25.8209
93600	4	82	6864	0	3840	F	24.375
110000	4	50	4510	0	3092	G	35.57568
573200	14	10	11192	0	23704	E	24.18157
79300	4	82	7425	0	3876	F	20.45924
272000	5	82	7500	0	9542	E	28.50555