Question

1.74, 1.74, 1.74, 1.84, 1.84, 1.85, 1.87, 1.87, 1.88, 1.88, 1.88, 1.89, 1.89, 1.89, 1.89, 2.25, 2.25, 2.25, 2.25, 2.25, 2.25, 2.19, 2.19, 2.19, 2.19

1. Find the sample mean and sample standard deviation.
2. Construct a 95% confidence interval for the population mean price of gasoline in the Dayton area. Show all your hand written work in doing this.
3. Explain what this confidence interval tells you.

Answer 1