Dr Cyril Conducts a Simple Random Sample of 500 Men

question 12

Multiple Choice

Dr. Cyril conducts a simple random sample of 500 men who became fathers for the first time in the past 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.