Ellen Jones likes to invest her money in a certain stock at the beginning of each day. The Excel file entitled "EllenJonesStock.xlsx" (available on Husky CT) contains the end-of-day return for the stock in the last 120 days. For example, if she invests $1000 and the end-of-day return is 12%, then Ellen will have a profit of $120. 

How much should Ellen invest in a day to have a 10% chance of not paying taxes? 

How much should Ellen invest to have a 95% chance of making at least $75 in profits?