(Solved): Insurance companies are interested in knowing the population percent of drivers who atways buckle u ...

Insurance companies are interested in knowing the population percent of drivers who atways buckle up before riding in a car. They randomly survey 392 drivers and find that 281 claim to always buckle up. Construct a 85\% confidence interval for the population proportion that claim to always buckle up. Use interval notation, for example, [1,5]