ʼn Hardeware winkel het 600 klante gevra wat hulle van die nuwe dekor reeks dink, en 414 van hulle was opgewonde daaroor. Bereken ʼn 90% vertrouensinterval vir die proporsie van individue in die populasie wat opgewonde oor die nuwe reeks sal wees. / A hardware store surveyed 600 consumers and found that 414 were enthusiastic about new home décor they plan to show in their stores. Construct a 90% confidence interval for the proportion of individuals in the population who would be enthusiastic about the new décor.