Question

In case of stratified random sampling with proportional allocation, the sample size from $i^{th}$ stratum is
A) $nW_i$
B) $n\frac{W_iS_i}{\Sigma^k_{i=1} {W_iS_i} }$
C) $nW_iS_i$
D) $\frac{W_iS_i}{\Sigma^k_{i=1} {W_iS_i} }$

Answer 1

Right answer is Option B

Answer 2

In case of stratified random sampling with proportional allocation, the sample size from $i^{th}$ stratum is

A) $nW_i$

B) $n\frac{W_iS_i}{\Sigma^k_{i=1} {W_iS_i} }$✔✔✔

C) $nW_iS_i$

D) $\frac{W_iS_i}{\Sigma^k_{i=1} {W_iS_i} }$.