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Product-Product-Type (PPT) Exponential Estimator in Double Sampling for Stratification (DSS) of Finite Population Mean

Housila P. Singh, Pragati Nigam


In this research work we have suggested an exponential estimator of product-product-type (PPT) in double sampling for stratification (DSS). We’ve obtained the bias and mean squared error (MSE) to the first degree of approximation (fda) of the developed estimator. Comparisons have been made theoretically and numerically both with unbiased estimator, estimator of product-type and exponential estimator of product-type. The work is also supported by an empirical analysis.


Bias, MSE, Auxiliary variable (A.V.), DSS.

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