Previous Surveys Reported That More Men Than Women Trade Stocks

Multiple Choice

Previous surveys reported that more men than women trade stocks online.A local brokerage firm randomly selected a sample of investors.They found that 45 out of 234 men traded online and 42 out of 251 women traded online.The 95% confidence interval for the difference in proportions is ________________________ .

A) 4% to 9%
B) -4% to 9%
C) 2% to 12%
D) -2% to 12%
E) -2% to -4%