| Inference in Normal Distribution Based on the Weighted Sampling | 
								
								  | Mohammad Reza Alavi *    ,  Rahim Chinipardaz    | 
								
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								  | Abstract:       (23614 Views) | 
								
								  | The classical analysis is based on random samples. However, in many situations the observations are recorded according to a nonnegative function of observations. In this case the mechanism of sampling is called weighted sampling. The usual statistical methods based on a weighted sample may be not valid and have to be adjusted. In this paper adjusted methods under some particular weight functions for normal distribution are studied and a new distribution called double normal distribution, is introduced as a weighted normal distribution. | 
								
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								  | Keywords:  Weighted Sampling, Independent Weight Function, Dependent Weight Function, Weighted Random Variable, Weighted Normal Distribution, Double Normal Distribution. | 
								
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								  | Full-Text  [PDF 1007 kb] 
                                    
                                     
                                     
                                    
									  
                                       (4371 Downloads) | 
								
								  | Type of Study:  Research |
                                  Subject: 
                                  Statistical Inference Received: 2011/07/4 | Accepted: 2013/08/13 | Published: 2020/02/18
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