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Chapter 8 Double Sampling (Two Phase Sampling)
Sampling Theory| Chapter 8 | Double Sampling (Two Phase Sampling) | Shalabh, IIT Kanpur Page 7 Choice of n and n' Write ˆ ' Rd ' VV MSE Y nn where VVand ' contain all the terms containing n and n' respectively. The cost function is CnCnC0 '' where C and C' are the costs per unit for selecting the samples n and n' respectively. Now we find the optimum sample sizes n …
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