Recently, the Federal Bank of NY stock exchanged loaned AGI brokers money to keep them from going bankrupt. This is known as a Solution sample size 1000 u=0.46 sigma= root(0.46*0.54/1000) =0.157 CI= (µ-zs ,µ+zs ) cI=(0.46 -1.96*0.157 , 0.46+1.96*0.157 ) =(0.152 , 0.77).