A survey company was hired to forecast the market demand for a certain product in your company. They determined that demand of the product follows a normal distribution with a mean as 35 and a variance as 16. Suppose you are a production manager to determine a production level to satisfy the demand. (Hint: you need to find out the standard deviation first) Please find a production level that can satisfy the demand with a 90% of chance. 40.13 41.58 44.31