Statistical Analysis Of Sensitivity Characteristic Proportion Based On Non-randomized Model Under Stratified Sampling

With the rapid development and transformation of society,social contradictions and problems are more diverse,in order to resolve the contradictions and problems,let the society has more healthy development,we must have a comprehensive and in-depth understanding of them.In the process of sampling survey,we often encounter some sensitive issues,such as whether have ever used drugs,AIDS,income level,criminal behavior,sexual orientation and so on.When it comes to these questions,out of the protection of personal privacy,interviewees often do not provide us with real answers.Note that,to improve the quality of social management and promote the healthy development of society,research on such sensitive issues has great benefit.Therefore,in order to improve the response rate and truth rate of sensitive survey questions,it is necessary to reduce the sense of insecurity and embarrassment of the respondents.Many scholars at home and abroad have done a lot of research on the investigation technique of sensitivity problems.First,this paper introduces initial randomized answering model for sensitive questions and randomized multi-option response model,After that,the paper mainly introduces the typical non-randomized answering model,including the crossover model,the triangle model and the parallel model,as well as the non-randomized multi-option answering model,including the introduction of the design principle,the derivation of relevant formulas,the characteristics and applicable scope.On the basis of the previous work,in this paper,the theoretical method of stratified sampling is applied to the nonrandom answer model.It mainly includes the parallel model and the non-randomized multi-option answering model.In the actual data analysis section,firstly,in Yunnan New Oriental school,stratified sampling and parallel model were applied to the survey of teachers’ satisfaction with their income,and it calculated the proportion of teachers satisfied with their income in all teachers in 2019.Next the stratified sampling and the non-randomized multi-option answering model applied to the monthly salary investigation,introducing irrelevant questions which were born in to protect respondents privacy,at the same time,according to the current social and economic level,the monthly income of all teachers in Yunnan New Oriental is divided into four categories,ultra-low income,general income,middle income,high income.To analyze the proportion of the number of teachers with these four incomes in the total number of teachers.A stratified sampling survey will carry out.