A store reorders some type of chemical when the amount on-hand reaches 500 pounds. Average daily usage is 60 pounds, which is normally distributed with a standard deviation of six pounds per day. Lead time is also normally distributed with a mean of seven days and a standard deviation of one day. What is the risk of a stockout? Note: Please use "sqrt" for square root in equations, such as sqrt(12 * 3/5).

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.