Create and interpret a confidence interval for the difference of two proportions.
-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%

Question

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The Answer of Create and interpret a confidence interval for the difference of two proportions.
-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%

Create and Interpret a Confidence Interval for the Difference of Two