In sampling without replacement from a population of 900, it’s found that the standard error of the mean, σx, is only two-thirds as large as it would have been if the population were infinite in size. That is the approximate sample size?

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- Feb 14th 2008, 05:55 AMhet_490@yahoo.comsample size?
In sampling without replacement from a population of 900, it’s found that the standard error of the mean, σx, is only two-thirds as large as it would have been if the population were infinite in size. That is the approximate sample size?

- Feb 15th 2008, 12:33 AMmr fantastic
For a small population:

where is the population standard deviation, N is the population size and n is the sample size.

is the*finite population correction factor*.

For a large population:

The given value of the finite population correction factor is and you're also given N = 900:

.