A Study Examined the Effectiveness of Botox Injections in the Corrugator

A study examined the effectiveness of Botox injections in the corrugator supercilii muscles for the treatment of chronic migraines. Of the 29 migraine-prone patients participating in the study, 16 reported complete migraine elimination. Using technology and a plus four 90% confidence interval for the population proportion of patients with complete migraine remission following such Botox injections, what is the margin of error? Assume the necessary assumptions for this confidence interval are valid.

A) 0.0867
B) 0.0923
C) 0.1426
D) 0.1810