In calculating the standard error,the population standard deviation is estimated by
A) $ S_{Y} $ ,the population variance.
B) $ S_{Y} $ ,the sample standard deviation.
C) $ \sigma_{Y} $ ,the population variance.
D) $ \sigma_{Y} $ ,the sample standard deviation.

Question

Quizplus · Accepted Answer

The standard error is calculated using the sample standard deviation ($ S_{Y} $) when the population standard deviation ($ \sigma_{Y} $) is unknown. This is because $ S_{Y} $ serves as an estimate of $ \sigma_{Y} $ based on the sample data.

In Calculating the Standard Error,the Population Standard Deviation Is Estimated SY S_{Y} SY​

In Calculating the Standard Error,the Population Standard Deviation Is Estimated $S_{Y}$