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                                  Inference in Normal Distribution Based on the Weighted Sampling
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								    Mohammad Reza Alavi *     ,  Rahim Chinipardaz      | 
								
								
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                                  Abstract:       (23654 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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                                  Type of Study:  Research |
                                  Subject: 
                                  Statistical Inference   Received: 2011/07/4 | Accepted: 2013/08/13 | Published: 2020/02/18
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