Use the Following to Answer the Questions Below

Multiple Choice

Use the following to answer the questions below:
On August 8, 2012, the national average price for a gallon of regular unleaded gasoline was $3.63. The prices for a random sample of gas stations in the state of Illinois were recorded at that time. The mean price for the sampled gas stations was $3.975, with standard deviation $0.2266. A boxplot of the data is provided.

-Construct a 95% confidence interval for the mean gas price in Illinois (on August 8, 2012) . Round your margin of error to three decimal places.

A) 3.813 to 4.137
B) 3.822 to 4.128
C) 3.807 to 4.143
D) 3.791 to 4.159