Imagine you work as an analyst for a large beverage firm, deciding where to place vending machines to best serve your customers. You want to determine if the average weekly sales generated by the vending machine is below $960. You examine the past 17 weeks of sales with a machine located on the campus of McMaster, and find that it had a sample average level of weekly sales of $822.66, with a sample standard deviation of $258.00. Using this information, find the standard error of the sample average of weekly sales of the vending machine. Note: 1- Only round your final answer. Round your final answer to two decimal places. Your Answer: