Use the Following Information for Questions

Multiple Choice

Use the following information for questions:
In a random sample of 50 men, 40% said they preferred to walk up stairs rather than take the elevator. In a random sample of 40 women, 50% said they preferred the stairs. The difference between the two sample proportions (men - women) is to be calculated.
-What is the standard error for the difference between the two sample proportions?

A) 0.0111
B) 0.0972
C) 0.1051
D) 0.1160