1. ANZ Bank's Wealth Management Division conducted a survey of the value of the new business created over the last month in millions of dollars. From 20 responses, the mean and standard deviation were found to be $3.751 and $1.429 million respectively. Assuming the data were collected through a random sample and that the value of new business is approximately normally distributed, calculate a 90% confidence interval estimate of the average value of new business per month in millions of dollars. State only the lower bound correct to three decimal places.