Let X represent the amount of gasoline (gallons) purchased by a randomly selected customer at a gas station. Suppose that the mean value and standard deviation of X are 11.5 and 4.0, respectively. In a sample of 50 randomly selected customers, what is the approximate probability that the sample mean amount purchased is at most 60 gallons? O 93.20% 0.40% 100.00% O 0.00%

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