Ramkrishna S. Solanki's research while affiliated with Vikram University and other places

... To estimate the finite population mean of the study variable, a novel weighted estimator was presented by [14], and it was demonstrated to be more effective than previous estimators. However, the work by [15] showed that it was better than previous estimators in estimating the population mean of the research variable in the context of non-response using known values of an auxiliary variable. The studies reviewed emphasise how crucial it is to manage non-response in sample surveys and how useful it is to use auxiliary data to raise estimator accuracy. ...

... The study outcomes show that the suggested estimator is superior to the initial conventional estimators. Recently, some notable work in estimation of population mean have been accomplished by [1,2,6,7,10,11,[13][14][15][16][17][18][19] and [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37]. ...

... Recent works have built on both the modifications of the classical ratio or regression and the exponential ratio estimators to obtain improved efficiencies in simple random sampling. These works include [24], [10], [58], [31], [35], [35], [42], [6], [7], [8]. These works showed some improvements over the Regression estimator. ...

... Further investigation is carried out from various angles recently by many authors viz. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24], etc. ...

... Tracy et al. (1996) and Gupta and Shabbir (2007) used information on two auxiliary variables and proposed estimators to estimate the population constants. Some other related work can be found in Singh and Singh (2001), Tripathi et al. (2002), Khoshnevisan et al. (2007), Singh et al. (2008a), Singh et al. (2008b), Singh and Kumar (2011), Singh and Solanki (2011), Singh and Malik (2014), Sharma et al. (2017), Adichwal et al. (2016), Adichwal et al. (2019), Adichwal et al. (2017), Singh et al. (2018) and Mishra and Singh (2017). ...

... where 2 , 2 are optimizing constant, and and are properly selected constants. Influenced by [39], an improved class of population mean estimator under SRSS is given by Ref. [27] suggested following enhanced classes of estimators utilizing SRSS as ...

... where,  is the constant to be determined. (12) Squaring and taking expectation of equation (11), we obtain the mean square error up to first order of approximation as: ...

... . For further recent studies in systematic sampling in presence of auxiliary information, the readers are referred to Swain (1964), Shukla (1971), Kushwaha and Singh (1989), Banarasi et al. (1993), Singh and Singh (1998), Singh et al. (2011, Singh and Solanki (2012), Singh and Jatwa (2012), Solanki and Singh (2015). ...

... Auxiliary information is information on auxiliary variables, like population mean, population variance, sample mean, sample variance, and so on which are used to improve the efficiency of estimators. Authors such as Sahai and Ray (1980), Sisodia and Dwivedi (1981), Singh and Singh (2002), Srivastava and Jhajj (1981), Solanki and Singh (2015), Singh and Solanki (2012), Singh and Tailor (2005), Kumar For estimating the population coefficient of variation, Das and Tripathi (1981) were the first to propose the estimator for the coefficient of variation when samples were selected using SRSWOR. Other works include that of Patel and Shah (2009), Gupta (2002, 2006), Archana In the current study, we proposed a ratio product estimator in the presence of population mean, population variance, sample mean, and sample variance of X for the estimation of the population coefficient of variation of the study variable Y, with the aim of obtaining a precise estimate of the parameter. ...

... Res. 9(01), 589-596 590 In present study, an effort has been made to modify the estimators of Solanki et al. (2015) under non-response. Novelty of present work lies in the fact that we have introduced the modified and generalized version of the exponential estimators proposed by Solanki et al. (2015) in presence of non response under scheme-I and scheme-II given by Singh and Joarder (1998). ...