An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic.

Suppose a sample of484new car buyers is drawn. Of those sampled,174preferred foreign over domestic cars. Using the data, estimate the proportion of new car buyers who prefer foreign cars. Enter your answer as a fraction or a decimal number rounded to three decimal places.

Using the data, construct the85%confidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars. Round your answers to three decimal places.