You take an attribute from your population and decide that's what you'll stratify on. his example is just gender, M or F, but say this dataset included the the state each person lived in. then he could stratify based on state and the number of strata would be the number of unique states that appear in the dataset. then once you have divided the population into strata by state, you set your sample size for each state to be proportional to how much of the whole dataset that state takes up. for example if 32% of the people in the dataset were from CA, and your overall sample size was 100, then your sample size from the CA strata would be 32.
What if I want to use systematic sampling within each stratum?
how do we divide N(say population units are known) population units into suitable numbers of strata ?
You take an attribute from your population and decide that's what you'll stratify on. his example is just gender, M or F, but say this dataset included the the state each person lived in. then he could stratify based on state and the number of strata would be the number of unique states that appear in the dataset. then once you have divided the population into strata by state, you set your sample size for each state to be proportional to how much of the whole dataset that state takes up. for example if 32% of the people in the dataset were from CA, and your overall sample size was 100, then your sample size from the CA strata would be 32.
nice crystal clear explanation till nw
Hi, have you the script?
Really great videos.
Hi Jalayer, Can you pls copy paste the code here?
hi how do i input data that not use seq? thanks
You like to talk too much, repeating same things 100 times