United States 1990 Census of Population and Housing

The UNIVARIATE Procedure

Variable: CityPop_90 (1990 metropolitan pop in millions)

Moments
N	51	Sum Weights	51
Mean	3.87701961	Sum Observations	197.728
Std Deviation	5.16465302	Variance	26.6736408
Skewness	2.87109259	Kurtosis	10.537867
Uncorrected SS	2100.27737	Corrected SS	1333.68204
Coeff Variation	133.21194	Std Error Mean	0.72319608

Basic Statistical Measures
Location		Variability
Mean	3.877020	Std Deviation	5.16465
Median	2.423000	Variance	26.67364
Mode	.	Range	28.66500
		Interquartile Range	3.60000

Tests for Location: Mu0=0
Test	Statistic		p Value
Student's t	t	5.360952	Pr > |t|	<.0001
Sign	M	25.5	Pr >= |M|	<.0001
Signed Rank	S	663	Pr >= |S|	<.0001

Trimmed Means
Percent Trimmed in Tail	Number Trimmed in Tail	Trimmed Mean	Std Error Trimmed Mean	95% Confidence Limits		DF	t for H0: Mu0=0.00	Pr > |t|
11.76	6	2.702231	0.535235	1.618705	3.785756	38	5.048686	<.0001
25.49	13	2.307000	0.438141	1.402721	3.211279	24	5.265424	<.0001

Winsorized Means
Percent Winsorized in Tail	Number Winsorized in Tail	Winsorized Mean	Std Error Winsorized Mean	95% Confidence Limits		DF	t for H0: Mu0=0.00	Pr > |t|
11.76	6	3.139588	0.536889	2.052713	4.226463	38	5.847741	<.0001

Robust Measures of Scale
Measure	Value	Estimate of Sigma
Interquartile Range	3.600000	2.668683
Gini's Mean Difference	4.614921	4.089867
MAD	1.675000	2.483355
Sn	2.626105	2.673281
Qn	2.230788	2.171186

Quantiles (Definition 5)
Quantile	Estimate
100% Max	28.799
99%	28.799
95%	14.166
90%	9.574
75% Q3	4.376
50% Median	2.423
25% Q1	0.776
10%	0.257
5%	0.191
1%	0.134
0% Min	0.134

Extreme Observations
Lowest		Highest
Value	Obs	Value	Obs
0.134	41	10.083	9
0.152	3	12.023	18
0.191	39	14.166	26
0.221	36	16.515	7
0.226	50	28.799	49