A Survey Finds That 13 Among a Simple Random Sample

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. Using technology, what is a 90% plus four confidence interval for P_Childre¯ P_Adults?

A) 0.045 ± 0.039
B) 0.045 ± 0.046
C) 0.045 ± 0.084
D) 0.045 ± 1.645