A major car magazine wants to estimate the proportion of customers who prefer to purchase domestically made cars. In a sample of 900 customers, 315 said they prefer to purchase domestically made cars. Construct a 95% confidence interval for the proportion of customers who prefer to purchase domestically made cars.

• In blank #1 enter the upper limit for the confidence interval. (Enter your answer as a percent, rounded to 2 decimal places and include the % sign.)
• In blank #2 enter the lower limit for the confidence interval. (Enter your answer as a percent, rounded to 2 decimal places and include the % sign.)
• Is it reasonable for the magazine to claim that the proportion of customers who prefer to purchase domestically made cars is 40%? Enter "yes" or "no" in blank #3.