DrCyril Conducts a Simple Random Sample of 500 Men Who

Multiple Choice

Dr.Cyril conducts a simple random sample of 500 men who became fathers for the first time in the last year.He finds that 23% of them report being unsure of their ability to be good fathers,plus or minus 4%.If Dr.Cyril increased his sample size to 1,000,which of the following would happen?

A) The true estimate would increase.
B) The margin of error would become smaller.
C) External validity would become less important.
D) Statistical validity would become negatively affected.