A Survey Finds That 13 Among a Simple Random Sample

Multiple Choice

A survey finds that 13 among a simple random sample of 184 young children have some food allergy, compared with 4 out of 163 adults. We want to compute a 90% plus four confidence interval for P_Childre¯ P_Adults . What is the plus four estimate for the proportion of young adults who have a food allergy?

A) 0.0707
B) 0.0753
C) 0.0798
D) 0.0904