One of the few working vending machines is located and is found to accept quarters with weights that are not unusual. Weights of quarters have a mean of 5.67 g and a standard deviation of 0.070 g. Find the z score for a quarter weighing 5.50 g. Will it be accepted by this vending machine?
Express all z scores with two decimal places. Consider a score to be unusual if its z score is less than -2.00 or greater than 2.00.