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	Abstract Details
	
	
		
			
				
				
				
					
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							Activity Number:
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							620 
								
							
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							Type:
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							Contributed
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							Date/Time:
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							Thursday, August 2, 2012 : 8:30 AM to 10:20 AM
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							Sponsor:
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							IMS	
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						| Abstract - #305975 | 
					 
					
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							Title:
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							Monotonicity in the Sample Size of the Length of Classical Confidence Intervals
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						Author(s):
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						Yaakov Malinovsky*+ and Abram M. Kagan 
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						Companies:
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						University of Maryland Baltimore County and University of Maryland 
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						Address:
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						Department of Mathematics and Statistics, Baltimore, MD, 21250, United States 
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						Keywords:
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							Gamma Function ; 
							Location and Scale Parameters ; 
							Stochastic Monotonicity 
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						Abstract:
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							It is proved that the average length of standard confidence intervals for parameters of gamma and normal distributions monotonically decreases with the sample size. Though the monotonicity seems a very natural property, the proofs are based on fine properties of the classical gamma function and are of independent interest.   
						 
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