# Answer on Statistics and Probability Question for Anurodh

Question #46501

A population of size 500 is divided into 4 strata. The following table gives the (5)

data on size and standard deviation of each stratum.

STRATA

I II III IV

Size 100 150 150 100

S.D. 5 8 7 10

A stratified random sample of size 100 is to be drawn from the population.

Determine the size of samples from each of these strata for:

i) proportional allocation

ii) Neyman’s optimal allocation

data on size and standard deviation of each stratum.

STRATA

I II III IV

Size 100 150 150 100

S.D. 5 8 7 10

A stratified random sample of size 100 is to be drawn from the population.

Determine the size of samples from each of these strata for:

i) proportional allocation

ii) Neyman’s optimal allocation

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