Answer :
It necessary to apply the finite population correction factor (FPC) when a sample is a significant part of the population because for more than 5% of finite population the standard error in the estimated value will come to be too big.
The formula of FPC is
FPC =[tex]\sqrt{ (N-n)/(N-1)}[/tex]
where N= population size
n= sample size
To know more about finite population correction factor
https://brainly.com/question/2114699
#SPJ4