Research by the IberiaBank of Louisiana revealed that 10% of its customers wait more than 5 minutes for a teller in a ba

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Research By The Iberiabank Of Louisiana Revealed That 10 Of Its Customers Wait More Than 5 Minutes For A Teller In A Ba 1 (18.95 KiB) Viewed 159 times

Research by the IberiaBank of Louisiana revealed that 10% of its customers wait more than 5 minutes for a teller in a bank lobby. Management considers this reasonable and will not add more tellers unless the proportion waiting longer than 5 minutes becomes larger than 10%. A branch manger at the Johnston Street believes that the wait is longer than the standard at her branch and requested additional part-time tellers. To support her request, she found that, in a sample of 100 customers, 13 waited more than 5 minutes. At the .01 significance level, is it reasonable to conclude that more than 10% of the customers wait more than 5 minutes? (10 points)